/* $NetBSD: tcic2.c,v 1.28 2007/10/19 12:00:02 ad Exp $ */ /* * Copyright (c) 1998, 1999 Christoph Badura. All rights reserved. * Copyright (c) 1997 Marc Horowitz. 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Marc Horowitz. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * 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. */ #include __KERNEL_RCSID(0, "$NetBSD: tcic2.c,v 1.28 2007/10/19 12:00:02 ad Exp $"); #undef TCICDEBUG #include #include #include #include #include #include #include #include #include #include #include #include #include "locators.h" #ifdef TCICDEBUG int tcic_debug = 1; #define DPRINTF(arg) if (tcic_debug) printf arg; #else #define DPRINTF(arg) #endif /* * Individual drivers will allocate their own memory and io regions. Memory * regions must be a multiple of 4k, aligned on a 4k boundary. */ #define TCIC_MEM_ALIGN TCIC_MEM_PAGESIZE void tcic_attach_socket(struct tcic_handle *); void tcic_init_socket(struct tcic_handle *); int tcic_print(void *arg, const char *pnp); int tcic_intr_socket(struct tcic_handle *); void tcic_attach_card(struct tcic_handle *); void tcic_detach_card(struct tcic_handle *, int); void tcic_deactivate_card(struct tcic_handle *); void tcic_chip_do_mem_map(struct tcic_handle *, int); void tcic_chip_do_io_map(struct tcic_handle *, int); void tcic_create_event_thread(void *); void tcic_event_thread(void *); void tcic_queue_event(struct tcic_handle *, int); /* Map between irq numbers and internal representation */ #if 1 int tcic_irqmap[] = { 0, 0, 0, 3, 4, 5, 6, 7, 0, 0, 10, 1, 0, 0, 14, 0 }; int tcic_valid_irqs = 0x4cf8; #else int tcic_irqmap[] = /* irqs 9 and 6 switched, some ISA cards */ { 0, 0, 0, 3, 4, 5, 0, 7, 0, 6, 10, 1, 0, 0, 14, 0 }; int tcic_valid_irqs = 0x4eb8; #endif int tcic_mem_speed = 250; /* memory access time in nanoseconds */ int tcic_io_speed = 165; /* io access time in nanoseconds */ /* * Check various reserved and otherwise in their value restricted bits. */ int tcic_check_reserved_bits(iot, ioh) bus_space_tag_t iot; bus_space_handle_t ioh; { int val, auxreg; DPRINTF(("tcic: chkrsvd 1\n")); /* R_ADDR bit 30:28 have a restricted range. */ val = (bus_space_read_2(iot, ioh, TCIC_R_ADDR2) & TCIC_SS_MASK) >> TCIC_SS_SHIFT; if (val > 1) return 0; DPRINTF(("tcic: chkrsvd 2\n")); /* R_SCTRL bits 6,2,1 are reserved. */ val = bus_space_read_1(iot, ioh, TCIC_R_SCTRL); if (val & TCIC_SCTRL_RSVD) return 0; DPRINTF(("tcic: chkrsvd 3\n")); /* R_ICSR bit 2 must be same as bit 3. */ val = bus_space_read_1(iot, ioh, TCIC_R_ICSR); if (((val >> 1) & 1) != ((val >> 2) & 1)) return 0; DPRINTF(("tcic: chkrsvd 4\n")); /* R_IENA bits 7,2 are reserverd. */ val = bus_space_read_1(iot, ioh, TCIC_R_IENA); if (val & TCIC_IENA_RSVD) return 0; DPRINTF(("tcic: chkrsvd 5\n")); /* Some aux registers have reserved bits. */ /* Which are we looking at? */ auxreg = bus_space_read_1(iot, ioh, TCIC_R_MODE) & TCIC_AR_MASK; val = bus_space_read_2(iot, ioh, TCIC_R_AUX); DPRINTF(("tcic: auxreg 0x%02x val 0x%04x\n", auxreg, val)); switch (auxreg) { case TCIC_AR_SYSCFG: if (INVALID_AR_SYSCFG(val)) return 0; break; case TCIC_AR_ILOCK: if (INVALID_AR_ILOCK(val)) return 0; break; case TCIC_AR_TEST: if (INVALID_AR_TEST(val)) return 0; break; } DPRINTF(("tcic: chkrsvd 6\n")); /* XXX fails if pcmcia bios is enabled. */ /* Various bits set or not depending if in RESET mode. */ val = bus_space_read_1(iot, ioh, TCIC_R_SCTRL); if (val & TCIC_SCTRL_RESET) { DPRINTF(("tcic: chkrsvd 7\n")); /* Address bits must be 0 */ val = bus_space_read_2(iot, ioh, TCIC_R_ADDR); if (val != 0) return 0; val = bus_space_read_2(iot, ioh, TCIC_R_ADDR2); if (val != 0) return 0; DPRINTF(("tcic: chkrsvd 8\n")); /* EDC bits must be 0 */ val = bus_space_read_2(iot, ioh, TCIC_R_EDC); if (val != 0) return 0; /* We're OK, so take it out of reset. XXX -chb */ bus_space_write_1(iot, ioh, TCIC_R_SCTRL, 0); } else { /* not in RESET mode */ int omode; int val1, val2; DPRINTF(("tcic: chkrsvd 9\n")); /* Programming timers must have expired. */ val = bus_space_read_1(iot, ioh, TCIC_R_SSTAT); if ((val & (TCIC_SSTAT_6US|TCIC_SSTAT_10US|TCIC_SSTAT_PROGTIME)) != (TCIC_SSTAT_6US|TCIC_SSTAT_10US|TCIC_SSTAT_PROGTIME)) return 0; DPRINTF(("tcic: chkrsvd 10\n")); /* * EDC bits should change on read from data space * as long as either EDC or the data are nonzero. */ if ((bus_space_read_2(iot, ioh, TCIC_R_ADDR2) & TCIC_ADDR2_INDREG) != 0) { val1 = bus_space_read_2(iot, ioh, TCIC_R_EDC); val2 = bus_space_read_2(iot, ioh, TCIC_R_DATA); if (val1 | val2) { val1 = bus_space_read_2(iot, ioh, TCIC_R_EDC); if (val1 == val2) return 0; } } DPRINTF(("tcic: chkrsvd 11\n")); /* XXX what does this check? -chb */ omode = bus_space_read_1(iot, ioh, TCIC_R_MODE); val1 = omode ^ TCIC_AR_MASK; bus_space_write_1(iot, ioh, TCIC_R_MODE, val1); val2 = bus_space_read_1(iot, ioh, TCIC_R_MODE); bus_space_write_1(iot, ioh, TCIC_R_MODE, omode); if ( val1 != val2) return 0; } /* All tests passed */ return 1; } /* * Read chip ID from AR_ILOCK in test mode. */ int tcic_chipid(iot, ioh) bus_space_tag_t iot; bus_space_handle_t ioh; { unsigned id, otest; otest = tcic_read_aux_2(iot, ioh, TCIC_AR_TEST); tcic_write_aux_2(iot, ioh, TCIC_AR_TEST, TCIC_TEST_DIAG); id = tcic_read_aux_2(iot, ioh, TCIC_AR_ILOCK); tcic_write_aux_2(iot, ioh, TCIC_AR_TEST, otest); id &= TCIC_ILOCKTEST_ID_MASK; id >>= TCIC_ILOCKTEST_ID_SHFT; /* clear up IRQs inside tcic. XXX -chb */ while (bus_space_read_1(iot, ioh, TCIC_R_ICSR)) bus_space_write_1(iot, ioh, TCIC_R_ICSR, TCIC_ICSR_JAM); return id; } /* * Indicate whether the driver can handle the chip. */ int tcic_chipid_known(id) int id; { /* XXX only know how to handle DB86082 -chb */ switch (id) { case TCIC_CHIPID_DB86082_1: case TCIC_CHIPID_DB86082A: case TCIC_CHIPID_DB86082B_ES: case TCIC_CHIPID_DB86082B: case TCIC_CHIPID_DB86084_1: case TCIC_CHIPID_DB86084A: case TCIC_CHIPID_DB86184_1: case TCIC_CHIPID_DB86072_1_ES: case TCIC_CHIPID_DB86072_1: return 1; } return 0; } const char * tcic_chipid_to_string(id) int id; { switch (id) { case TCIC_CHIPID_DB86082_1: return ("Databook DB86082"); case TCIC_CHIPID_DB86082A: return ("Databook DB86082A"); case TCIC_CHIPID_DB86082B_ES: return ("Databook DB86082B-es"); case TCIC_CHIPID_DB86082B: return ("Databook DB86082B"); case TCIC_CHIPID_DB86084_1: return ("Databook DB86084"); case TCIC_CHIPID_DB86084A: return ("Databook DB86084A"); case TCIC_CHIPID_DB86184_1: return ("Databook DB86184"); case TCIC_CHIPID_DB86072_1_ES: return ("Databook DB86072-es"); case TCIC_CHIPID_DB86072_1: return ("Databook DB86072"); } return ("Unknown controller"); } /* * Return bitmask of IRQs that the chip can handle. * XXX should be table driven. */ int tcic_validirqs(chipid) int chipid; { switch (chipid) { case TCIC_CHIPID_DB86082_1: case TCIC_CHIPID_DB86082A: case TCIC_CHIPID_DB86082B_ES: case TCIC_CHIPID_DB86082B: case TCIC_CHIPID_DB86084_1: case TCIC_CHIPID_DB86084A: case TCIC_CHIPID_DB86184_1: case TCIC_CHIPID_DB86072_1_ES: case TCIC_CHIPID_DB86072_1: return tcic_valid_irqs; } return 0; } void tcic_attach(sc) struct tcic_softc *sc; { int i, reg; /* set more chipset dependent parameters in the softc. */ switch (sc->chipid) { case TCIC_CHIPID_DB86084_1: case TCIC_CHIPID_DB86084A: case TCIC_CHIPID_DB86184_1: sc->pwrena = TCIC_PWR_ENA; break; default: sc->pwrena = 0; break; } /* set up global config registers */ reg = TCIC_WAIT_SYNC | TCIC_WAIT_CCLK | TCIC_WAIT_RISING; reg |= (tcic_ns2wscnt(250) & TCIC_WAIT_COUNT_MASK); tcic_write_aux_1(sc->iot, sc->ioh, TCIC_AR_WCTL, TCIC_R_WCTL_WAIT, reg); reg = TCIC_SYSCFG_MPSEL_RI | TCIC_SYSCFG_MCSFULL; tcic_write_aux_2(sc->iot, sc->ioh, TCIC_AR_SYSCFG, reg); reg = tcic_read_aux_2(sc->iot, sc->ioh, TCIC_AR_ILOCK); reg |= TCIC_ILOCK_HOLD_CCLK; tcic_write_aux_2(sc->iot, sc->ioh, TCIC_AR_ILOCK, reg); /* the TCIC has two sockets */ /* XXX should i check for actual presence of sockets? -chb */ for (i = 0; i < TCIC_NSLOTS; i++) { sc->handle[i].sc = sc; sc->handle[i].sock = i; sc->handle[i].flags = TCIC_FLAG_SOCKETP; sc->handle[i].memwins = sc->chipid == TCIC_CHIPID_DB86082_1 ? 4 : 5; } /* establish the interrupt */ reg = tcic_read_1(&sc->handle[0], TCIC_R_IENA); tcic_write_1(&sc->handle[0], TCIC_R_IENA, (reg & ~TCIC_IENA_CFG_MASK) | TCIC_IENA_CFG_HIGH); reg = tcic_read_aux_2(sc->iot, sc->ioh, TCIC_AR_SYSCFG); tcic_write_aux_2(sc->iot, sc->ioh, TCIC_AR_SYSCFG, (reg & ~TCIC_SYSCFG_IRQ_MASK) | tcic_irqmap[sc->irq]); /* XXX block interrupts? */ for (i = 0; i < TCIC_NSLOTS; i++) { /* XXX make more clear what happens here -chb */ tcic_sel_sock(&sc->handle[i]); tcic_write_ind_2(&sc->handle[i], TCIC_IR_SCF1_N(i), 0); tcic_write_ind_2(&sc->handle[i], TCIC_IR_SCF2_N(i), (TCIC_SCF2_MCD|TCIC_SCF2_MWP|TCIC_SCF2_MRDY #if 1 /* XXX explain byte routing issue */ |TCIC_SCF2_MLBAT2|TCIC_SCF2_MLBAT1|TCIC_SCF2_IDBR)); #else |TCIC_SCF2_MLBAT2|TCIC_SCF2_MLBAT1)); #endif tcic_write_1(&sc->handle[i], TCIC_R_MODE, 0); reg = tcic_read_aux_2(sc->iot, sc->ioh, TCIC_AR_SYSCFG); reg &= ~TCIC_SYSCFG_AUTOBUSY; tcic_write_aux_2(sc->iot, sc->ioh, TCIC_AR_SYSCFG, reg); SIMPLEQ_INIT(&sc->handle[i].events); } if ((sc->handle[0].flags & TCIC_FLAG_SOCKETP) || (sc->handle[1].flags & TCIC_FLAG_SOCKETP)) { printf("%s: %s has ", sc->dev.dv_xname, tcic_chipid_to_string(sc->chipid)); if ((sc->handle[0].flags & TCIC_FLAG_SOCKETP) && (sc->handle[1].flags & TCIC_FLAG_SOCKETP)) printf("sockets A and B\n"); else if (sc->handle[0].flags & TCIC_FLAG_SOCKETP) printf("socket A only\n"); else printf("socket B only\n"); } } void tcic_attach_sockets(sc) struct tcic_softc *sc; { int i; for (i = 0; i < TCIC_NSLOTS; i++) if (sc->handle[i].flags & TCIC_FLAG_SOCKETP) tcic_attach_socket(&sc->handle[i]); } void tcic_attach_socket(h) struct tcic_handle *h; { struct pcmciabus_attach_args paa; int locs[PCMCIABUSCF_NLOCS]; /* initialize the rest of the handle */ h->shutdown = 0; h->memalloc = 0; h->ioalloc = 0; h->ih_irq = 0; /* now, config one pcmcia device per socket */ paa.paa_busname = "pcmcia"; paa.pct = (pcmcia_chipset_tag_t) h->sc->pct; paa.pch = (pcmcia_chipset_handle_t) h; paa.iobase = h->sc->iobase; paa.iosize = h->sc->iosize; locs[PCMCIABUSCF_CONTROLLER] = 0; locs[PCMCIABUSCF_SOCKET] = h->sock; h->pcmcia = config_found_sm_loc(&h->sc->dev, "pcmciabus", locs, &paa, tcic_print, config_stdsubmatch); /* if there's actually a pcmcia device attached, initialize the slot */ if (h->pcmcia) tcic_init_socket(h); } void tcic_create_event_thread(arg) void *arg; { struct tcic_handle *h = arg; const char *cs; switch (h->sock) { case 0: cs = "0"; break; case 1: cs = "1"; break; default: panic("tcic_create_event_thread: unknown tcic socket"); } if (kthread_create(PRI_NONE, 0, NULL, tcic_event_thread, h, &h->event_thread, "%s,%s", h->sc->dev.dv_xname, cs)) { printf("%s: unable to create event thread for sock 0x%02x\n", h->sc->dev.dv_xname, h->sock); panic("tcic_create_event_thread"); } } void tcic_event_thread(arg) void *arg; { struct tcic_handle *h = arg; struct tcic_event *pe; int s; while (h->shutdown == 0) { s = splhigh(); if ((pe = SIMPLEQ_FIRST(&h->events)) == NULL) { splx(s); (void) tsleep(&h->events, PWAIT, "tcicev", 0); continue; } SIMPLEQ_REMOVE_HEAD(&h->events, pe_q); splx(s); switch (pe->pe_type) { case TCIC_EVENT_INSERTION: DPRINTF(("%s: insertion event\n", h->sc->dev.dv_xname)); tcic_attach_card(h); break; case TCIC_EVENT_REMOVAL: DPRINTF(("%s: removal event\n", h->sc->dev.dv_xname)); tcic_detach_card(h, DETACH_FORCE); break; default: panic("tcic_event_thread: unknown event %d", pe->pe_type); } free(pe, M_TEMP); } h->event_thread = NULL; /* In case parent is waiting for us to exit. */ wakeup(h->sc); kthread_exit(0); } void tcic_init_socket(h) struct tcic_handle *h; { int reg; /* select this socket's config registers */ tcic_sel_sock(h); /* set up the socket to interrupt on card detect */ reg = tcic_read_ind_2(h, TCIC_IR_SCF2_N(h->sock)); tcic_write_ind_2(h, TCIC_IR_SCF2_N(h->sock), reg & ~TCIC_SCF2_MCD); /* enable CD irq in R_IENA */ reg = tcic_read_2(h, TCIC_R_IENA); tcic_write_2(h, TCIC_R_IENA, reg |= TCIC_IENA_CDCHG); /* if there's a card there, then attach it. also save sstat */ h->sstat = reg = tcic_read_1(h, TCIC_R_SSTAT) & TCIC_SSTAT_STAT_MASK; if (reg & TCIC_SSTAT_CD) tcic_attach_card(h); } int tcic_print(arg, pnp) void *arg; const char *pnp; { struct pcmciabus_attach_args *paa = arg; struct tcic_handle *h = (struct tcic_handle *) paa->pch; /* Only "pcmcia"s can attach to "tcic"s... easy. */ if (pnp) aprint_normal("pcmcia at %s", pnp); aprint_normal(" socket %d", h->sock); return (UNCONF); } int tcic_intr(arg) void *arg; { struct tcic_softc *sc = arg; int i, ret = 0; DPRINTF(("%s: intr\n", sc->dev.dv_xname)); for (i = 0; i < TCIC_NSLOTS; i++) if (sc->handle[i].flags & TCIC_FLAG_SOCKETP) ret += tcic_intr_socket(&sc->handle[i]); return (ret ? 1 : 0); } int tcic_intr_socket(h) struct tcic_handle *h; { int icsr, rv; rv = 0; tcic_sel_sock(h); icsr = tcic_read_1(h, TCIC_R_ICSR); DPRINTF(("%s: %d icsr: 0x%02x \n", h->sc->dev.dv_xname, h->sock, icsr)); /* XXX or should the next three be handled in tcic_intr? -chb */ if (icsr & TCIC_ICSR_PROGTIME) { DPRINTF(("%s: %02x PROGTIME\n", h->sc->dev.dv_xname, h->sock)); rv = 1; } if (icsr & TCIC_ICSR_ILOCK) { DPRINTF(("%s: %02x ILOCK\n", h->sc->dev.dv_xname, h->sock)); rv = 1; } if (icsr & TCIC_ICSR_ERR) { DPRINTF(("%s: %02x ERR\n", h->sc->dev.dv_xname, h->sock)); rv = 1; } if (icsr & TCIC_ICSR_CDCHG) { int sstat, delta; /* compute what changed since last interrupt */ sstat = tcic_read_aux_1(h->sc->iot, h->sc->ioh, TCIC_AR_WCTL, TCIC_R_WCTL_XCSR) & TCIC_XCSR_STAT_MASK; delta = h->sstat ^ sstat; h->sstat = sstat; if (delta) rv = 1; DPRINTF(("%s: %02x CDCHG %x\n", h->sc->dev.dv_xname, h->sock, delta)); /* * XXX This should probably schedule something to happen * after the interrupt handler completes */ if (delta & TCIC_SSTAT_CD) { if (sstat & TCIC_SSTAT_CD) { if (!(h->flags & TCIC_FLAG_CARDP)) { DPRINTF(("%s: enqueing INSERTION event\n", h->sc->dev.dv_xname)); tcic_queue_event(h, TCIC_EVENT_INSERTION); } } else { if (h->flags & TCIC_FLAG_CARDP) { /* Deactivate the card now. */ DPRINTF(("%s: deactivating card\n", h->sc->dev.dv_xname)); tcic_deactivate_card(h); DPRINTF(("%s: enqueing REMOVAL event\n", h->sc->dev.dv_xname)); tcic_queue_event(h, TCIC_EVENT_REMOVAL); } } } if (delta & TCIC_SSTAT_RDY) { DPRINTF(("%s: %02x READY\n", h->sc->dev.dv_xname, h->sock)); /* shouldn't happen */ } if (delta & TCIC_SSTAT_LBAT1) { DPRINTF(("%s: %02x LBAT1\n", h->sc->dev.dv_xname, h->sock)); } if (delta & TCIC_SSTAT_LBAT2) { DPRINTF(("%s: %02x LBAT2\n", h->sc->dev.dv_xname, h->sock)); } if (delta & TCIC_SSTAT_WP) { DPRINTF(("%s: %02x WP\n", h->sc->dev.dv_xname, h->sock)); } } return rv; } void tcic_queue_event(h, event) struct tcic_handle *h; int event; { struct tcic_event *pe; int s; pe = malloc(sizeof(*pe), M_TEMP, M_NOWAIT); if (pe == NULL) panic("tcic_queue_event: can't allocate event"); pe->pe_type = event; s = splhigh(); SIMPLEQ_INSERT_TAIL(&h->events, pe, pe_q); splx(s); wakeup(&h->events); } void tcic_attach_card(h) struct tcic_handle *h; { DPRINTF(("tcic_attach_card\n")); if (h->flags & TCIC_FLAG_CARDP) panic("tcic_attach_card: already attached"); /* call the MI attach function */ pcmcia_card_attach(h->pcmcia); h->flags |= TCIC_FLAG_CARDP; } void tcic_detach_card(h, flags) struct tcic_handle *h; int flags; /* DETACH_* */ { DPRINTF(("tcic_detach_card\n")); if (!(h->flags & TCIC_FLAG_CARDP)) panic("tcic_detach_card: already detached"); h->flags &= ~TCIC_FLAG_CARDP; /* call the MI detach function */ pcmcia_card_detach(h->pcmcia, flags); } void tcic_deactivate_card(h) struct tcic_handle *h; { int val, reg; if (!(h->flags & TCIC_FLAG_CARDP)) panic("tcic_deactivate_card: already detached"); /* call the MI deactivate function */ pcmcia_card_deactivate(h->pcmcia); tcic_sel_sock(h); /* XXX disable card detect resume and configuration reset??? */ /* power down the socket */ tcic_write_1(h, TCIC_R_PWR, 0); /* reset the card XXX ? -chb */ /* turn off irq's for this socket */ reg = TCIC_IR_SCF1_N(h->sock); val = tcic_read_ind_2(h, reg); tcic_write_ind_2(h, reg, (val & ~TCIC_SCF1_IRQ_MASK)|TCIC_SCF1_IRQOFF); reg = TCIC_IR_SCF2_N(h->sock); val = tcic_read_ind_2(h, reg); tcic_write_ind_2(h, reg, (val | (TCIC_SCF2_MLBAT1|TCIC_SCF2_MLBAT2|TCIC_SCF2_MRDY |TCIC_SCF2_MWP|TCIC_SCF2_MCD))); } /* XXX the following routine may need to be rewritten. -chb */ int tcic_chip_mem_alloc(pch, size, pcmhp) pcmcia_chipset_handle_t pch; bus_size_t size; struct pcmcia_mem_handle *pcmhp; { struct tcic_handle *h = (struct tcic_handle *) pch; bus_space_handle_t memh; bus_addr_t addr; bus_size_t sizepg; int i, mask, mhandle, got = 0; /* out of sc->memh, allocate as many pages as necessary */ /* * The TCIC can map memory only in sizes that are * powers of two, aligned at the natural boundary for the size. */ i = tcic_log2((u_int)size); if ((1< TCIC_MEM_PAGES) /* XXX -chb */ return 1; mask = (1 << sizepg) - 1; addr = 0; /* XXX gcc -Wuninitialized */ mhandle = 0; /* XXX gcc -Wuninitialized */ /* XXX i should be initialised to always lay on boundary. -chb */ for (i = 0; i < (TCIC_MEM_PAGES + 1 - sizepg); i += sizepg) { if ((h->sc->subregionmask & (mask << i)) == (mask << i)) { if (bus_space_subregion(h->sc->memt, h->sc->memh, i * TCIC_MEM_PAGESIZE, sizepg * TCIC_MEM_PAGESIZE, &memh)) return (1); mhandle = mask << i; addr = h->sc->membase + (i * TCIC_MEM_PAGESIZE); h->sc->subregionmask &= ~(mhandle); got = 1; break; } } if (got == 0) return (1); DPRINTF(("tcic_chip_mem_alloc bus addr 0x%lx+0x%lx\n", (u_long) addr, (u_long) size)); pcmhp->memt = h->sc->memt; pcmhp->memh = memh; pcmhp->addr = addr; pcmhp->size = size; pcmhp->mhandle = mhandle; pcmhp->realsize = sizepg * TCIC_MEM_PAGESIZE; return (0); } /* XXX the following routine may need to be rewritten. -chb */ void tcic_chip_mem_free(pch, pcmhp) pcmcia_chipset_handle_t pch; struct pcmcia_mem_handle *pcmhp; { struct tcic_handle *h = (struct tcic_handle *) pch; h->sc->subregionmask |= pcmhp->mhandle; } void tcic_chip_do_mem_map(h, win) struct tcic_handle *h; int win; { int reg, hwwin, wscnt; int kind = h->mem[win].kind & ~PCMCIA_WIDTH_MEM_MASK; int mem8 = (h->mem[win].kind & PCMCIA_WIDTH_MEM_MASK) == PCMCIA_WIDTH_MEM8; DPRINTF(("tcic_chip_do_mem_map window %d: 0x%lx+0x%lx 0x%lx\n", win, (u_long)h->mem[win].addr, (u_long)h->mem[win].size, (u_long)h->mem[win].offset)); /* * the even windows are used for socket 0, * the odd ones for socket 1. */ hwwin = (win << 1) + h->sock; /* the WR_MEXT register is MBZ */ tcic_write_ind_2(h, TCIC_WR_MEXT_N(hwwin), 0); /* set the host base address and window size */ if (h->mem[win].size2 <= 1) { reg = ((h->mem[win].addr >> TCIC_MEM_SHIFT) & TCIC_MBASE_ADDR_MASK) | TCIC_MBASE_4K; } else { reg = ((h->mem[win].addr >> TCIC_MEM_SHIFT) & TCIC_MBASE_ADDR_MASK) | (h->mem[win].size2 >> 1); } tcic_write_ind_2(h, TCIC_WR_MBASE_N(hwwin), reg); /* set the card address and address space */ reg = 0; reg = ((h->mem[win].offset >> TCIC_MEM_SHIFT) & TCIC_MMAP_ADDR_MASK); reg |= (kind == PCMCIA_MEM_ATTR) ? TCIC_MMAP_ATTR : 0; DPRINTF(("tcic_chip_do_map_mem window %d(%d) mmap 0x%04x\n", win, hwwin, reg)); tcic_write_ind_2(h, TCIC_WR_MMAP_N(hwwin), reg); /* set the MCTL register */ /* must save WSCNT field in case this is a DB86082 rev 0 */ /* XXX why can't I do the following two in one statement? */ reg = tcic_read_ind_2(h, TCIC_WR_MCTL_N(hwwin)) & TCIC_MCTL_WSCNT_MASK; reg |= TCIC_MCTL_ENA|TCIC_MCTL_QUIET; reg |= mem8 ? TCIC_MCTL_B8 : 0; reg |= (h->sock << TCIC_MCTL_SS_SHIFT) & TCIC_MCTL_SS_MASK; #ifdef notyet /* XXX must get speed from CIS somehow. -chb */ wscnt = tcic_ns2wscnt(h->mem[win].speed); #else wscnt = tcic_ns2wscnt(tcic_mem_speed); /* 300 is "save" default for CIS memory */ #endif if (h->sc->chipid == TCIC_CHIPID_DB86082_1) { /* * this chip has the wait state count in window * register 7 - hwwin. */ int reg2; reg2 = tcic_read_ind_2(h, TCIC_WR_MCTL_N(7-hwwin)); reg2 &= ~TCIC_MCTL_WSCNT_MASK; reg2 |= wscnt & TCIC_MCTL_WSCNT_MASK; tcic_write_ind_2(h, TCIC_WR_MCTL_N(7-hwwin), reg2); } else { reg |= wscnt & TCIC_MCTL_WSCNT_MASK; } tcic_write_ind_2(h, TCIC_WR_MCTL_N(hwwin), reg); #ifdef TCICDEBUG { int r1, r2, r3; r1 = tcic_read_ind_2(h, TCIC_WR_MBASE_N(hwwin)); r2 = tcic_read_ind_2(h, TCIC_WR_MMAP_N(hwwin)); r3 = tcic_read_ind_2(h, TCIC_WR_MCTL_N(hwwin)); DPRINTF(("tcic_chip_do_mem_map window %d(%d): %04x %04x %04x\n", win, hwwin, r1, r2, r3)); } #endif } /* XXX needs work */ int tcic_chip_mem_map(pch, kind, card_addr, size, pcmhp, offsetp, windowp) pcmcia_chipset_handle_t pch; int kind; bus_addr_t card_addr; bus_size_t size; struct pcmcia_mem_handle *pcmhp; bus_size_t *offsetp; int *windowp; { struct tcic_handle *h = (struct tcic_handle *) pch; bus_addr_t busaddr; long card_offset; int i, win; win = -1; for (i = 0; i < h->memwins; i++) { if ((h->memalloc & (1 << i)) == 0) { win = i; h->memalloc |= (1 << i); break; } } if (win == -1) return (1); *windowp = win; /* XXX this is pretty gross */ if (h->sc->memt != pcmhp->memt) panic("tcic_chip_mem_map memt is bogus"); busaddr = pcmhp->addr; /* * compute the address offset to the pcmcia address space for the * tcic. this is intentionally signed. The masks and shifts below * will cause TRT to happen in the tcic registers. Deal with making * sure the address is aligned, and return the alignment offset. */ *offsetp = card_addr % TCIC_MEM_ALIGN; card_addr -= *offsetp; DPRINTF(("tcic_chip_mem_map window %d bus %lx+%lx+%lx at card addr " "%lx\n", win, (u_long) busaddr, (u_long) * offsetp, (u_long) size, (u_long) card_addr)); /* XXX we can't use size. -chb */ /* * include the offset in the size, and decrement size by one, since * the hw wants start/stop */ size += *offsetp - 1; card_offset = (((long) card_addr) - ((long) busaddr)); DPRINTF(("tcic_chip_mem_map window %d card_offset 0x%lx\n", win, (u_long)card_offset)); h->mem[win].addr = busaddr; h->mem[win].size = size; h->mem[win].size2 = tcic_log2((u_int)pcmhp->realsize) - TCIC_MEM_SHIFT; h->mem[win].offset = card_offset; h->mem[win].kind = kind; tcic_chip_do_mem_map(h, win); return (0); } void tcic_chip_mem_unmap(pch, window) pcmcia_chipset_handle_t pch; int window; { struct tcic_handle *h = (struct tcic_handle *) pch; int hwwin; if (window >= h->memwins) panic("tcic_chip_mem_unmap: window out of range"); hwwin = (window << 1) + h->sock; tcic_write_ind_2(h, TCIC_WR_MCTL_N(hwwin), 0); h->memalloc &= ~(1 << window); } int tcic_chip_io_alloc(pch, start, size, align, pcihp) pcmcia_chipset_handle_t pch; bus_addr_t start; bus_size_t size; bus_size_t align; struct pcmcia_io_handle *pcihp; { struct tcic_handle *h = (struct tcic_handle *) pch; bus_space_tag_t iot; bus_space_handle_t ioh; bus_addr_t ioaddr; int size2, flags = 0; /* * Allocate some arbitrary I/O space. */ DPRINTF(("tcic_chip_io_alloc req 0x%lx %ld %ld\n", (u_long) start, (u_long) size, (u_long) align)); /* * The TCIC can map I/O space only in sizes that are * powers of two, aligned at the natural boundary for the size. */ size2 = tcic_log2((u_int)size); if ((1 << size2) < size) size2++; /* can't allocate that much anyway */ if (size2 > 16) /* XXX 64K -chb */ return 1; if (align) { if ((1 << size2) != align) return 1; /* not suitably aligned */ } else { align = 1 << size2; /* no alignment given, make it natural */ } if (start & (align - 1)) return 1; /* not suitably aligned */ iot = h->sc->iot; if (start) { ioaddr = start; if (bus_space_map(iot, start, size, 0, &ioh)) return (1); DPRINTF(("tcic_chip_io_alloc map port %lx+%lx\n", (u_long) ioaddr, (u_long) size)); } else { flags |= PCMCIA_IO_ALLOCATED; if (bus_space_alloc(iot, h->sc->iobase, h->sc->iobase + h->sc->iosize, size, align, 0, 0, &ioaddr, &ioh)) return (1); DPRINTF(("tcic_chip_io_alloc alloc port %lx+%lx\n", (u_long) ioaddr, (u_long) size)); } pcihp->iot = iot; pcihp->ioh = ioh; pcihp->addr = ioaddr; pcihp->size = size; pcihp->flags = flags; return (0); } void tcic_chip_io_free(pcmcia_chipset_handle_t pch, struct pcmcia_io_handle *pcihp) { bus_space_tag_t iot = pcihp->iot; bus_space_handle_t ioh = pcihp->ioh; bus_size_t size = pcihp->size; if (pcihp->flags & PCMCIA_IO_ALLOCATED) bus_space_free(iot, ioh, size); else bus_space_unmap(iot, ioh, size); } static int tcic_iowidth_map[] = { TCIC_ICTL_AUTOSZ, TCIC_ICTL_B8, TCIC_ICTL_B16 }; void tcic_chip_do_io_map(h, win) struct tcic_handle *h; int win; { int reg, size2, iotiny, wbase, hwwin, wscnt; DPRINTF(("tcic_chip_do_io_map win %d addr %lx size %lx width %d\n", win, (long) h->io[win].addr, (long) h->io[win].size, h->io[win].width * 8)); /* * the even windows are used for socket 0, * the odd ones for socket 1. */ hwwin = (win << 1) + h->sock; /* set the WR_BASE register */ /* XXX what if size isn't power of 2? -chb */ size2 = tcic_log2((u_int)h->io[win].size); DPRINTF(("tcic_chip_do_io_map win %d size2 %d\n", win, size2)); if (size2 < 1) { iotiny = TCIC_ICTL_TINY; wbase = h->io[win].addr; } else { iotiny = 0; /* XXX we should do better -chb */ wbase = h->io[win].addr | (1 << (size2 - 1)); } tcic_write_ind_2(h, TCIC_WR_IBASE_N(hwwin), wbase); /* set the WR_ICTL register */ reg = TCIC_ICTL_ENA | TCIC_ICTL_QUIET; reg |= (h->sock << TCIC_ICTL_SS_SHIFT) & TCIC_ICTL_SS_MASK; reg |= iotiny | tcic_iowidth_map[h->io[win].width]; if (h->sc->chipid != TCIC_CHIPID_DB86082_1) reg |= TCIC_ICTL_PASS16; #ifdef notyet /* XXX must get speed from CIS somehow. -chb */ wscnt = tcic_ns2wscnt(h->io[win].speed); #else wscnt = tcic_ns2wscnt(tcic_io_speed); /* linux uses 0 as default */ #endif reg |= wscnt & TCIC_ICTL_WSCNT_MASK; tcic_write_ind_2(h, TCIC_WR_ICTL_N(hwwin), reg); #ifdef TCICDEBUG { int r1, r2; r1 = tcic_read_ind_2(h, TCIC_WR_IBASE_N(hwwin)); r2 = tcic_read_ind_2(h, TCIC_WR_ICTL_N(hwwin)); DPRINTF(("tcic_chip_do_io_map window %d(%d): %04x %04x\n", win, hwwin, r1, r2)); } #endif } int tcic_chip_io_map(pch, width, offset, size, pcihp, windowp) pcmcia_chipset_handle_t pch; int width; bus_addr_t offset; bus_size_t size; struct pcmcia_io_handle *pcihp; int *windowp; { struct tcic_handle *h = (struct tcic_handle *) pch; bus_addr_t ioaddr = pcihp->addr + offset; int i, win; #ifdef TCICDEBUG static char *width_names[] = { "auto", "io8", "io16" }; #endif /* XXX Sanity check offset/size. */ win = -1; for (i = 0; i < TCIC_IO_WINS; i++) { if ((h->ioalloc & (1 << i)) == 0) { win = i; h->ioalloc |= (1 << i); break; } } if (win == -1) return (1); *windowp = win; /* XXX this is pretty gross */ if (h->sc->iot != pcihp->iot) panic("tcic_chip_io_map iot is bogus"); DPRINTF(("tcic_chip_io_map window %d %s port %lx+%lx\n", win, width_names[width], (u_long) ioaddr, (u_long) size)); /* XXX wtf is this doing here? */ printf("%s: port 0x%lx", h->sc->dev.dv_xname, (u_long) ioaddr); if (size > 1) printf("-0x%lx", (u_long) ioaddr + (u_long) size - 1); printf("\n"); h->io[win].addr = ioaddr; h->io[win].size = size; h->io[win].width = width; tcic_chip_do_io_map(h, win); return (0); } void tcic_chip_io_unmap(pch, window) pcmcia_chipset_handle_t pch; int window; { struct tcic_handle *h = (struct tcic_handle *) pch; int hwwin; if (window >= TCIC_IO_WINS) panic("tcic_chip_io_unmap: window out of range"); hwwin = (window << 1) + h->sock; tcic_write_ind_2(h, TCIC_WR_ICTL_N(hwwin), 0); h->ioalloc &= ~(1 << window); } void tcic_chip_socket_enable(pch) pcmcia_chipset_handle_t pch; { struct tcic_handle *h = (struct tcic_handle *) pch; int reg, win; tcic_sel_sock(h); /* * power down the socket to reset it. * put card reset into high-z, put chip outputs to card into high-z */ tcic_write_1(h, TCIC_R_PWR, 0); reg = tcic_read_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK); reg |= TCIC_ILOCK_CWAIT; reg &= ~(TCIC_ILOCK_CRESET|TCIC_ILOCK_CRESENA); tcic_write_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK, reg); tcic_write_1(h, TCIC_R_SCTRL, 0); /* clear TCIC_SCTRL_ENA */ /* zero out the address windows */ tcic_write_ind_2(h, TCIC_IR_SCF1_N(h->sock), 0); /* writing to WR_MBASE_N disables the window */ for (win = 0; win < h->memwins; win++) { tcic_write_ind_2(h, TCIC_WR_MBASE_N((win << 1) + h->sock), 0); } /* writing to WR_IBASE_N disables the window */ for (win = 0; win < TCIC_IO_WINS; win++) { tcic_write_ind_2(h, TCIC_WR_IBASE_N((win << 1) + h->sock), 0); } /* power up the socket */ /* turn on VCC, turn of VPP */ reg = TCIC_PWR_VCC_N(h->sock) | TCIC_PWR_VPP_N(h->sock) | h->sc->pwrena; if (h->sc->pwrena) /* this is a '84 type chip */ reg |= TCIC_PWR_VCC5V; tcic_write_1(h, TCIC_R_PWR, reg); delay(10000); /* enable reset and wiggle it to reset the card */ reg = tcic_read_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK); reg |= TCIC_ILOCK_CRESENA; tcic_write_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK, reg); /* XXX need bus_space_barrier here */ reg |= TCIC_ILOCK_CRESET; tcic_write_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK, reg); /* enable card signals */ tcic_write_1(h, TCIC_R_SCTRL, TCIC_SCTRL_ENA); delay(10); /* wait 10 us */ /* clear the reset flag */ reg = tcic_read_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK); reg &= ~(TCIC_ILOCK_CRESET); tcic_write_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK, reg); /* wait 20ms as per pc card standard (r2.01) section 4.3.6 */ delay(20000); /* wait for the chip to finish initializing */ tcic_wait_ready(h); /* WWW */ /* reinstall all the memory and io mappings */ for (win = 0; win < h->memwins; win++) if (h->memalloc & (1 << win)) tcic_chip_do_mem_map(h, win); for (win = 0; win < TCIC_IO_WINS; win++) if (h->ioalloc & (1 << win)) tcic_chip_do_io_map(h, win); } void tcic_chip_socket_settype(pch, type) pcmcia_chipset_handle_t pch; int type; { struct tcic_handle *h = (struct tcic_handle *) pch; int reg; tcic_sel_sock(h); /* set the card type */ reg = 0; if (type == PCMCIA_IFTYPE_IO) { reg |= TCIC_SCF1_IOSTS; reg |= tcic_irqmap[h->ih_irq]; /* enable interrupts */ } tcic_write_ind_2(h, TCIC_IR_SCF1_N(h->sock), reg); DPRINTF(("%s: tcic_chip_socket_enable %d cardtype %s 0x%02x\n", h->sc->dev.dv_xname, h->sock, ((type == PCMCIA_IFTYPE_IO) ? "io" : "mem"), reg)); } void tcic_chip_socket_disable(pch) pcmcia_chipset_handle_t pch; { struct tcic_handle *h = (struct tcic_handle *) pch; int val; DPRINTF(("tcic_chip_socket_disable\n")); tcic_sel_sock(h); /* disable interrupts */ val = tcic_read_ind_2(h, TCIC_IR_SCF1_N(h->sock)); val &= TCIC_SCF1_IRQ_MASK; tcic_write_ind_2(h, TCIC_IR_SCF1_N(h->sock), val); /* disable the output signals */ tcic_write_1(h, TCIC_R_SCTRL, 0); val = tcic_read_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK); val &= ~TCIC_ILOCK_CRESENA; tcic_write_aux_2(h->sc->iot, h->sc->ioh, TCIC_AR_ILOCK, val); /* power down the socket */ tcic_write_1(h, TCIC_R_PWR, 0); } /* * XXX The following is Linux driver but doesn't match the table * in the manual. */ int tcic_ns2wscnt(ns) int ns; { if (ns < 14) { return 0; } else { return (2*(ns-14))/70; /* XXX assumes 14.31818 MHz clock. */ } } int tcic_log2(val) u_int val; { int i, l2; l2 = i = 0; while (val) { if (val & 1) l2 = i; i++; val >>= 1; } return l2; }