/* $NetBSD: pcmcia.c,v 1.23 2000/07/28 19:17:02 drochner Exp $ */ /*- * SPDX-License-Identifier: BSD-4-Clause * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "power_if.h" #include "card_if.h" #define PCCARDDEBUG /* sysctl vars */ static SYSCTL_NODE(_hw, OID_AUTO, pccard, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "PCCARD parameters"); int pccard_debug = 0; SYSCTL_INT(_hw_pccard, OID_AUTO, debug, CTLFLAG_RWTUN, &pccard_debug, 0, "pccard debug"); int pccard_cis_debug = 0; SYSCTL_INT(_hw_pccard, OID_AUTO, cis_debug, CTLFLAG_RWTUN, &pccard_cis_debug, 0, "pccard CIS debug"); #ifdef PCCARDDEBUG #define DPRINTF(arg) if (pccard_debug) printf arg #define DEVPRINTF(arg) if (pccard_debug) device_printf arg #define PRVERBOSE(arg) printf arg #define DEVPRVERBOSE(arg) device_printf arg #else #define DPRINTF(arg) #define DEVPRINTF(arg) #define PRVERBOSE(arg) if (bootverbose) printf arg #define DEVPRVERBOSE(arg) if (bootverbose) device_printf arg #endif static int pccard_ccr_read(struct pccard_function *pf, int ccr); static void pccard_ccr_write(struct pccard_function *pf, int ccr, int val); static int pccard_attach_card(device_t dev); static int pccard_detach_card(device_t dev); static void pccard_function_init(struct pccard_function *pf, int entry); static void pccard_function_free(struct pccard_function *pf); static int pccard_function_enable(struct pccard_function *pf); static void pccard_function_disable(struct pccard_function *pf); static int pccard_probe(device_t dev); static int pccard_attach(device_t dev); static int pccard_detach(device_t dev); static void pccard_print_resources(struct resource_list *rl, const char *name, int type, int count, const char *format); static int pccard_print_child(device_t dev, device_t child); static int pccard_set_resource(device_t dev, device_t child, int type, int rid, rman_res_t start, rman_res_t count); static int pccard_get_resource(device_t dev, device_t child, int type, int rid, rman_res_t *startp, rman_res_t *countp); static void pccard_delete_resource(device_t dev, device_t child, int type, int rid); static int pccard_set_res_flags(device_t dev, device_t child, int type, int rid, u_long flags); static int pccard_set_memory_offset(device_t dev, device_t child, int rid, uint32_t offset, uint32_t *deltap); static int pccard_probe_and_attach_child(device_t dev, device_t child, struct pccard_function *pf); static void pccard_probe_nomatch(device_t cbdev, device_t child); static int pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result); static void pccard_driver_added(device_t dev, driver_t *driver); static struct resource *pccard_alloc_resource(device_t dev, device_t child, int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags); static int pccard_release_resource(device_t dev, device_t child, int type, int rid, struct resource *r); static void pccard_child_detached(device_t parent, device_t dev); static int pccard_filter(void *arg); static void pccard_intr(void *arg); static int pccard_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep); static int pccard_teardown_intr(device_t dev, device_t child, struct resource *r, void *cookie); static const struct pccard_product * pccard_do_product_lookup(device_t bus, device_t dev, const struct pccard_product *tab, size_t ent_size, pccard_product_match_fn matchfn); static int pccard_ccr_read(struct pccard_function *pf, int ccr) { return (bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + ccr)); } static void pccard_ccr_write(struct pccard_function *pf, int ccr, int val) { if ((pf->ccr_mask) & (1 << (ccr / 2))) { bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + ccr, val); } } static int pccard_set_default_descr(device_t dev) { const char *vendorstr, *prodstr; uint32_t vendor, prod; char *str; if (pccard_get_vendor_str(dev, &vendorstr)) return (0); if (pccard_get_product_str(dev, &prodstr)) return (0); if (vendorstr != NULL && prodstr != NULL) { str = malloc(strlen(vendorstr) + strlen(prodstr) + 2, M_DEVBUF, M_WAITOK); sprintf(str, "%s %s", vendorstr, prodstr); device_set_desc_copy(dev, str); free(str, M_DEVBUF); } else { if (pccard_get_vendor(dev, &vendor)) return (0); if (pccard_get_product(dev, &prod)) return (0); str = malloc(100, M_DEVBUF, M_WAITOK); snprintf(str, 100, "vendor=%#x product=%#x", vendor, prod); device_set_desc_copy(dev, str); free(str, M_DEVBUF); } return (0); } static int pccard_attach_card(device_t dev) { struct pccard_softc *sc = PCCARD_SOFTC(dev); struct pccard_function *pf; struct pccard_ivar *ivar; device_t child; int i; if (!STAILQ_EMPTY(&sc->card.pf_head)) { if (bootverbose || pccard_debug) device_printf(dev, "Card already inserted.\n"); } DEVPRINTF((dev, "chip_socket_enable\n")); POWER_ENABLE_SOCKET(device_get_parent(dev), dev); DEVPRINTF((dev, "read_cis\n")); pccard_read_cis(sc); DEVPRINTF((dev, "check_cis_quirks\n")); pccard_check_cis_quirks(dev); /* * bail now if the card has no functions, or if there was an error in * the cis. */ if (sc->card.error) { device_printf(dev, "CARD ERROR!\n"); return (1); } if (STAILQ_EMPTY(&sc->card.pf_head)) { device_printf(dev, "Card has no functions!\n"); return (1); } if (bootverbose || pccard_debug) pccard_print_cis(dev); DEVPRINTF((dev, "functions scanning\n")); i = -1; STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { i++; if (STAILQ_EMPTY(&pf->cfe_head)) { device_printf(dev, "Function %d has no config entries.!\n", i); continue; } pf->sc = sc; pf->cfe = NULL; pf->dev = NULL; } DEVPRINTF((dev, "Card has %d functions. pccard_mfc is %d\n", i + 1, pccard_mfc(sc))); bus_topo_lock(); STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { if (STAILQ_EMPTY(&pf->cfe_head)) continue; ivar = malloc(sizeof(struct pccard_ivar), M_DEVBUF, M_WAITOK | M_ZERO); resource_list_init(&ivar->resources); child = device_add_child(dev, NULL, -1); device_set_ivars(child, ivar); ivar->pf = pf; pf->dev = child; pccard_probe_and_attach_child(dev, child, pf); } bus_topo_unlock(); return (0); } static int pccard_probe_and_attach_child(device_t dev, device_t child, struct pccard_function *pf) { struct pccard_softc *sc = PCCARD_SOFTC(dev); int error; /* * In NetBSD, the drivers are responsible for activating each * function of a card and selecting the config to use. In * FreeBSD, all that's done automatically in the typical lazy * way we do device resource allocation (except we pick the * cfe up front). This is the biggest depature from the * inherited NetBSD model, apart from the FreeBSD resource code. * * This seems to work well in practice for most cards. * However, there are two cases that are problematic. If a * driver wishes to pick and chose which config entry to use, * then this method falls down. These are usually older * cards. In addition, there are some cards that have * multiple hardware units on the cards, but presents only one * CIS chain. These cards are combination cards, but only one * of these units can be on at a time. * * To overcome this limitation, while preserving the basic * model, the probe routine can select a cfe and try to * activate it. If that succeeds, then we'll keep track of * and let that information persist until we attach the card. * Probe routines that do this MUST return 0, and cannot * participate in the bidding process for a device. This * seems harsh until you realize that if a probe routine knows * enough to override the cfe we pick, then chances are very * very good that it is the only driver that could hope to * cope with the card. Bidding is for generic drivers, and * while some of them may also match, none of them will do * configuration override. */ error = device_probe(child); if (error != 0) goto out; pccard_function_init(pf, -1); if (sc->sc_enabled_count == 0) POWER_ENABLE_SOCKET(device_get_parent(dev), dev); if (pccard_function_enable(pf) == 0 && pccard_set_default_descr(child) == 0 && device_attach(child) == 0) { DEVPRINTF((sc->dev, "function %d CCR at %d offset %#x " "mask %#x: %#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n", pf->number, pf->pf_ccr_window, pf->pf_ccr_offset, pf->ccr_mask, pccard_ccr_read(pf, 0x00), pccard_ccr_read(pf, 0x02), pccard_ccr_read(pf, 0x04), pccard_ccr_read(pf, 0x06), pccard_ccr_read(pf, 0x0A), pccard_ccr_read(pf, 0x0C), pccard_ccr_read(pf, 0x0E), pccard_ccr_read(pf, 0x10), pccard_ccr_read(pf, 0x12))); return (0); } error = ENXIO; out:; /* * Probe may fail AND also try to select a cfe, if so, free * it. This is how we do cfe override. Or the attach fails. * Either way, we have to clean up. */ if (pf->cfe != NULL) pccard_function_disable(pf); pf->cfe = NULL; pccard_function_free(pf); return error; } static int pccard_detach_card(device_t dev) { struct pccard_softc *sc = PCCARD_SOFTC(dev); struct pccard_function *pf; struct pccard_config_entry *cfe; struct pccard_ivar *devi; int state; /* * We are running on either the PCCARD socket's event thread * or in user context detaching a device by user request. */ STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { if (pf->dev == NULL) continue; state = device_get_state(pf->dev); if (state == DS_ATTACHED || state == DS_BUSY) device_detach(pf->dev); if (pf->cfe != NULL) pccard_function_disable(pf); pccard_function_free(pf); devi = PCCARD_IVAR(pf->dev); device_delete_child(dev, pf->dev); free(devi, M_DEVBUF); } if (sc->sc_enabled_count == 0) POWER_DISABLE_SOCKET(device_get_parent(dev), dev); while (NULL != (pf = STAILQ_FIRST(&sc->card.pf_head))) { while (NULL != (cfe = STAILQ_FIRST(&pf->cfe_head))) { STAILQ_REMOVE_HEAD(&pf->cfe_head, cfe_list); free(cfe, M_DEVBUF); } STAILQ_REMOVE_HEAD(&sc->card.pf_head, pf_list); free(pf, M_DEVBUF); } STAILQ_INIT(&sc->card.pf_head); return (0); } static const struct pccard_product * pccard_do_product_lookup(device_t bus, device_t dev, const struct pccard_product *tab, size_t ent_size, pccard_product_match_fn matchfn) { const struct pccard_product *ent; int matches; uint32_t vendor; uint32_t prod; const char *vendorstr; const char *prodstr; const char *cis3str; const char *cis4str; #ifdef DIAGNOSTIC if (sizeof *ent > ent_size) panic("pccard_product_lookup: bogus ent_size %jd", (intmax_t) ent_size); #endif if (pccard_get_vendor(dev, &vendor)) return (NULL); if (pccard_get_product(dev, &prod)) return (NULL); if (pccard_get_vendor_str(dev, &vendorstr)) return (NULL); if (pccard_get_product_str(dev, &prodstr)) return (NULL); if (pccard_get_cis3_str(dev, &cis3str)) return (NULL); if (pccard_get_cis4_str(dev, &cis4str)) return (NULL); for (ent = tab; ent->pp_vendor != 0; ent = (const struct pccard_product *) ((const char *) ent + ent_size)) { matches = 1; if (ent->pp_vendor == PCCARD_VENDOR_ANY && ent->pp_product == PCCARD_PRODUCT_ANY && ent->pp_cis[0] == NULL && ent->pp_cis[1] == NULL) { if (ent->pp_name) device_printf(dev, "Total wildcard entry ignored for %s\n", ent->pp_name); continue; } if (matches && ent->pp_vendor != PCCARD_VENDOR_ANY && vendor != ent->pp_vendor) matches = 0; if (matches && ent->pp_product != PCCARD_PRODUCT_ANY && prod != ent->pp_product) matches = 0; if (matches && ent->pp_cis[0] && (vendorstr == NULL || strcmp(ent->pp_cis[0], vendorstr) != 0)) matches = 0; if (matches && ent->pp_cis[1] && (prodstr == NULL || strcmp(ent->pp_cis[1], prodstr) != 0)) matches = 0; if (matches && ent->pp_cis[2] && (cis3str == NULL || strcmp(ent->pp_cis[2], cis3str) != 0)) matches = 0; if (matches && ent->pp_cis[3] && (cis4str == NULL || strcmp(ent->pp_cis[3], cis4str) != 0)) matches = 0; if (matchfn != NULL) matches = (*matchfn)(dev, ent, matches); if (matches) return (ent); } return (NULL); } /** * @brief pccard_select_cfe * * Select a cfe entry to use. Should be called from the pccard's probe * routine after it knows for sure that it wants this card. * * XXX I think we need to make this symbol be static, ala the kobj stuff * we do for everything else. This is a quick hack. */ int pccard_select_cfe(device_t dev, int entry) { struct pccard_ivar *devi = PCCARD_IVAR(dev); struct pccard_function *pf = devi->pf; pccard_function_init(pf, entry); return (pf->cfe ? 0 : ENOMEM); } /* * Initialize a PCCARD function. May be called as long as the function is * disabled. * * Note: pccard_function_init should not keep resources allocated. It should * only set them up ala isa pnp, set the values in the rl lists, and return. * Any resource held after pccard_function_init is called is a bug. However, * the bus routines to get the resources also assume that pccard_function_init * does this, so they need to be fixed too. */ static void pccard_function_init(struct pccard_function *pf, int entry) { struct pccard_config_entry *cfe; struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); struct resource_list *rl = &devi->resources; struct resource_list_entry *rle; struct resource *r = NULL; struct pccard_ce_iospace *ios; struct pccard_ce_memspace *mems; device_t bus; rman_res_t start, end, len; int i, rid, spaces; if (pf->pf_flags & PFF_ENABLED) { printf("pccard_function_init: function is enabled"); return; } /* * Driver probe routine requested a specific entry already * that succeeded. */ if (pf->cfe != NULL) return; /* * walk the list of configuration entries until we find one that * we can allocate all the resources to. */ bus = device_get_parent(pf->dev); STAILQ_FOREACH(cfe, &pf->cfe_head, cfe_list) { if (cfe->iftype != PCCARD_IFTYPE_IO) continue; if (entry != -1 && cfe->number != entry) continue; spaces = 0; for (i = 0; i < cfe->num_iospace; i++) { ios = cfe->iospace + i; start = ios->start; if (start) end = start + ios->length - 1; else end = ~0; DEVPRINTF((bus, "I/O rid %d start %#jx end %#jx\n", i, start, end)); rid = i; len = ios->length; r = bus_alloc_resource(bus, SYS_RES_IOPORT, &rid, start, end, len, rman_make_alignment_flags(len)); if (r == NULL) { DEVPRINTF((bus, "I/O rid %d failed\n", i)); goto not_this_one; } rle = resource_list_add(rl, SYS_RES_IOPORT, rid, rman_get_start(r), rman_get_end(r), len); if (rle == NULL) panic("Cannot add resource rid %d IOPORT", rid); rle->res = r; spaces++; } for (i = 0; i < cfe->num_memspace; i++) { mems = cfe->memspace + i; start = mems->cardaddr + mems->hostaddr; if (start) end = start + mems->length - 1; else end = ~0; DEVPRINTF((bus, "Memory rid %d start %#jx end %#jx\ncardaddr %#jx hostaddr %#jx length %#jx\n", i, start, end, mems->cardaddr, mems->hostaddr, mems->length)); rid = i; len = mems->length; r = bus_alloc_resource(bus, SYS_RES_MEMORY, &rid, start, end, len, rman_make_alignment_flags(len)); if (r == NULL) { DEVPRINTF((bus, "Memory rid %d failed\n", i)); // goto not_this_one; continue; } rle = resource_list_add(rl, SYS_RES_MEMORY, rid, rman_get_start(r), rman_get_end(r), len); if (rle == NULL) panic("Cannot add resource rid %d MEM", rid); rle->res = r; spaces++; } if (spaces == 0) { DEVPRINTF((bus, "Neither memory nor I/O mapped\n")); goto not_this_one; } if (cfe->irqmask) { rid = 0; r = bus_alloc_resource_any(bus, SYS_RES_IRQ, &rid, RF_SHAREABLE); if (r == NULL) { DEVPRINTF((bus, "IRQ rid %d failed\n", rid)); goto not_this_one; } rle = resource_list_add(rl, SYS_RES_IRQ, rid, rman_get_start(r), rman_get_end(r), 1); if (rle == NULL) panic("Cannot add resource rid %d IRQ", rid); rle->res = r; } /* If we get to here, we've allocated all we need */ pf->cfe = cfe; break; not_this_one:; DEVPRVERBOSE((bus, "Allocation failed for cfe %d\n", cfe->number)); resource_list_purge(rl); } } /* * Free resources allocated by pccard_function_init(), May be called as long * as the function is disabled. * * NOTE: This function should be unnecessary. pccard_function_init should * never keep resources initialized. */ static void pccard_function_free(struct pccard_function *pf) { struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); struct resource_list_entry *rle; if (pf->pf_flags & PFF_ENABLED) { printf("pccard_function_free: function is enabled"); return; } STAILQ_FOREACH(rle, &devi->resources, link) { if (rle->res) { if (rman_get_device(rle->res) != pf->sc->dev) device_printf(pf->sc->dev, "function_free: Resource still owned by " "child, oops. " "(type=%d, rid=%d, addr=%#jx)\n", rle->type, rle->rid, rman_get_start(rle->res)); BUS_RELEASE_RESOURCE(device_get_parent(pf->sc->dev), pf->sc->dev, rle->type, rle->rid, rle->res); rle->res = NULL; } } resource_list_free(&devi->resources); } static void pccard_mfc_adjust_iobase(struct pccard_function *pf, rman_res_t addr, rman_res_t offset, rman_res_t size) { bus_size_t iosize, tmp; if (addr != 0) { if (pf->pf_mfc_iomax == 0) { pf->pf_mfc_iobase = addr + offset; pf->pf_mfc_iomax = pf->pf_mfc_iobase + size; } else { /* this makes the assumption that nothing overlaps */ if (pf->pf_mfc_iobase > addr + offset) pf->pf_mfc_iobase = addr + offset; if (pf->pf_mfc_iomax < addr + offset + size) pf->pf_mfc_iomax = addr + offset + size; } } tmp = pf->pf_mfc_iomax - pf->pf_mfc_iobase; /* round up to nearest (2^n)-1 */ for (iosize = 1; iosize < tmp; iosize <<= 1) ; iosize--; DEVPRINTF((pf->dev, "MFC: I/O base %#jx IOSIZE %#jx\n", (uintmax_t)pf->pf_mfc_iobase, (uintmax_t)(iosize + 1))); pccard_ccr_write(pf, PCCARD_CCR_IOBASE0, pf->pf_mfc_iobase & 0xff); pccard_ccr_write(pf, PCCARD_CCR_IOBASE1, (pf->pf_mfc_iobase >> 8) & 0xff); pccard_ccr_write(pf, PCCARD_CCR_IOBASE2, 0); pccard_ccr_write(pf, PCCARD_CCR_IOBASE3, 0); pccard_ccr_write(pf, PCCARD_CCR_IOSIZE, iosize); } /* Enable a PCCARD function */ static int pccard_function_enable(struct pccard_function *pf) { struct pccard_function *tmp; int reg; device_t dev = pf->sc->dev; if (pf->cfe == NULL) { DEVPRVERBOSE((dev, "No config entry could be allocated.\n")); return (ENOMEM); } if (pf->pf_flags & PFF_ENABLED) return (0); pf->sc->sc_enabled_count++; /* * it's possible for different functions' CCRs to be in the same * underlying page. Check for that. */ STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { if ((tmp->pf_flags & PFF_ENABLED) && (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && ((pf->ccr_base + PCCARD_CCR_SIZE) <= (tmp->ccr_base - tmp->pf_ccr_offset + tmp->pf_ccr_realsize))) { pf->pf_ccrt = tmp->pf_ccrt; pf->pf_ccrh = tmp->pf_ccrh; pf->pf_ccr_realsize = tmp->pf_ccr_realsize; /* * pf->pf_ccr_offset = (tmp->pf_ccr_offset - * tmp->ccr_base) + pf->ccr_base; */ /* pf->pf_ccr_offset = (tmp->pf_ccr_offset + pf->ccr_base) - tmp->ccr_base; */ pf->pf_ccr_window = tmp->pf_ccr_window; break; } } if (tmp == NULL) { pf->ccr_rid = 0; pf->ccr_res = bus_alloc_resource_anywhere(dev, SYS_RES_MEMORY, &pf->ccr_rid, PCCARD_MEM_PAGE_SIZE, RF_ACTIVE); if (!pf->ccr_res) goto bad; DEVPRINTF((dev, "ccr_res == %#jx-%#jx, base=%#x\n", rman_get_start(pf->ccr_res), rman_get_end(pf->ccr_res), pf->ccr_base)); CARD_SET_RES_FLAGS(device_get_parent(dev), dev, SYS_RES_MEMORY, pf->ccr_rid, PCCARD_A_MEM_ATTR); CARD_SET_MEMORY_OFFSET(device_get_parent(dev), dev, pf->ccr_rid, pf->ccr_base, &pf->pf_ccr_offset); pf->pf_ccrt = rman_get_bustag(pf->ccr_res); pf->pf_ccrh = rman_get_bushandle(pf->ccr_res); pf->pf_ccr_realsize = 1; } reg = (pf->cfe->number & PCCARD_CCR_OPTION_CFINDEX); reg |= PCCARD_CCR_OPTION_LEVIREQ; if (pccard_mfc(pf->sc)) { reg |= (PCCARD_CCR_OPTION_FUNC_ENABLE | PCCARD_CCR_OPTION_ADDR_DECODE); /* PCCARD_CCR_OPTION_IRQ_ENABLE set elsewhere as needed */ } pccard_ccr_write(pf, PCCARD_CCR_OPTION, reg); reg = 0; if ((pf->cfe->flags & PCCARD_CFE_IO16) == 0) reg |= PCCARD_CCR_STATUS_IOIS8; if (pf->cfe->flags & PCCARD_CFE_AUDIO) reg |= PCCARD_CCR_STATUS_AUDIO; pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg); pccard_ccr_write(pf, PCCARD_CCR_SOCKETCOPY, 0); if (pccard_mfc(pf->sc)) pccard_mfc_adjust_iobase(pf, 0, 0, 0); #ifdef PCCARDDEBUG if (pccard_debug) { STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { device_printf(tmp->sc->dev, "function %d CCR at %d offset %#x: " "%#x %#x %#x %#x, %#x %#x %#x %#x, %#x\n", tmp->number, tmp->pf_ccr_window, tmp->pf_ccr_offset, pccard_ccr_read(tmp, 0x00), pccard_ccr_read(tmp, 0x02), pccard_ccr_read(tmp, 0x04), pccard_ccr_read(tmp, 0x06), pccard_ccr_read(tmp, 0x0A), pccard_ccr_read(tmp, 0x0C), pccard_ccr_read(tmp, 0x0E), pccard_ccr_read(tmp, 0x10), pccard_ccr_read(tmp, 0x12)); } } #endif pf->pf_flags |= PFF_ENABLED; return (0); bad: /* * Decrement the reference count, and power down the socket, if * necessary. */ pf->sc->sc_enabled_count--; DEVPRINTF((dev, "bad --enabled_count = %d\n", pf->sc->sc_enabled_count)); return (1); } /* Disable PCCARD function. */ static void pccard_function_disable(struct pccard_function *pf) { struct pccard_function *tmp; device_t dev = pf->sc->dev; if (pf->cfe == NULL) panic("pccard_function_disable: function not initialized"); if ((pf->pf_flags & PFF_ENABLED) == 0) return; if (pf->intr_handler != NULL) { struct pccard_ivar *devi = PCCARD_IVAR(pf->dev); struct resource_list_entry *rle = resource_list_find(&devi->resources, SYS_RES_IRQ, 0); if (rle == NULL) panic("Can't disable an interrupt with no IRQ res\n"); BUS_TEARDOWN_INTR(dev, pf->dev, rle->res, pf->intr_handler_cookie); } /* * it's possible for different functions' CCRs to be in the same * underlying page. Check for that. Note we mark us as disabled * first to avoid matching ourself. */ pf->pf_flags &= ~PFF_ENABLED; STAILQ_FOREACH(tmp, &pf->sc->card.pf_head, pf_list) { if ((tmp->pf_flags & PFF_ENABLED) && (pf->ccr_base >= (tmp->ccr_base - tmp->pf_ccr_offset)) && ((pf->ccr_base + PCCARD_CCR_SIZE) <= (tmp->ccr_base - tmp->pf_ccr_offset + tmp->pf_ccr_realsize))) break; } /* Not used by anyone else; unmap the CCR. */ if (tmp == NULL) { bus_release_resource(dev, SYS_RES_MEMORY, pf->ccr_rid, pf->ccr_res); pf->ccr_res = NULL; } /* * Decrement the reference count, and power down the socket, if * necessary. */ pf->sc->sc_enabled_count--; } #define PCCARD_NPORT 2 #define PCCARD_NMEM 5 #define PCCARD_NIRQ 1 #define PCCARD_NDRQ 0 static int pccard_probe(device_t dev) { device_set_desc(dev, "16-bit PCCard bus"); return (0); } static int pccard_attach(device_t dev) { struct pccard_softc *sc = PCCARD_SOFTC(dev); int err; sc->dev = dev; sc->sc_enabled_count = 0; if ((err = pccard_device_create(sc)) != 0) return (err); gone_in_dev(dev, 13, "PC Card to be removed."); STAILQ_INIT(&sc->card.pf_head); return (bus_generic_attach(dev)); } static int pccard_detach(device_t dev) { pccard_detach_card(dev); pccard_device_destroy(device_get_softc(dev)); return (0); } static int pccard_suspend(device_t self) { pccard_detach_card(self); return (0); } static int pccard_resume(device_t self) { return (0); } static void pccard_print_resources(struct resource_list *rl, const char *name, int type, int count, const char *format) { struct resource_list_entry *rle; int printed; int i; printed = 0; for (i = 0; i < count; i++) { rle = resource_list_find(rl, type, i); if (rle != NULL) { if (printed == 0) printf(" %s ", name); else if (printed > 0) printf(","); printed++; printf(format, rle->start); if (rle->count > 1) { printf("-"); printf(format, rle->start + rle->count - 1); } } else if (i > 3) { /* check the first few regardless */ break; } } } static int pccard_print_child(device_t dev, device_t child) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct resource_list *rl = &devi->resources; int retval = 0; retval += bus_print_child_header(dev, child); retval += printf(" at"); if (devi != NULL) { pccard_print_resources(rl, "port", SYS_RES_IOPORT, PCCARD_NPORT, "%#lx"); pccard_print_resources(rl, "iomem", SYS_RES_MEMORY, PCCARD_NMEM, "%#lx"); pccard_print_resources(rl, "irq", SYS_RES_IRQ, PCCARD_NIRQ, "%ld"); pccard_print_resources(rl, "drq", SYS_RES_DRQ, PCCARD_NDRQ, "%ld"); retval += printf(" function %d config %d", devi->pf->number, devi->pf->cfe->number); } retval += bus_print_child_footer(dev, child); return (retval); } static int pccard_set_resource(device_t dev, device_t child, int type, int rid, rman_res_t start, rman_res_t count) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct resource_list *rl = &devi->resources; if (type != SYS_RES_IOPORT && type != SYS_RES_MEMORY && type != SYS_RES_IRQ && type != SYS_RES_DRQ) return (EINVAL); if (rid < 0) return (EINVAL); if (type == SYS_RES_IOPORT && rid >= PCCARD_NPORT) return (EINVAL); if (type == SYS_RES_MEMORY && rid >= PCCARD_NMEM) return (EINVAL); if (type == SYS_RES_IRQ && rid >= PCCARD_NIRQ) return (EINVAL); if (type == SYS_RES_DRQ && rid >= PCCARD_NDRQ) return (EINVAL); resource_list_add(rl, type, rid, start, start + count - 1, count); if (NULL != resource_list_alloc(rl, device_get_parent(dev), dev, type, &rid, start, start + count - 1, count, 0)) return 0; else return ENOMEM; } static int pccard_get_resource(device_t dev, device_t child, int type, int rid, rman_res_t *startp, rman_res_t *countp) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct resource_list *rl = &devi->resources; struct resource_list_entry *rle; rle = resource_list_find(rl, type, rid); if (rle == NULL) return (ENOENT); if (startp != NULL) *startp = rle->start; if (countp != NULL) *countp = rle->count; return (0); } static void pccard_delete_resource(device_t dev, device_t child, int type, int rid) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct resource_list *rl = &devi->resources; resource_list_delete(rl, type, rid); } static int pccard_set_res_flags(device_t dev, device_t child, int type, int rid, u_long flags) { return (CARD_SET_RES_FLAGS(device_get_parent(dev), child, type, rid, flags)); } static int pccard_set_memory_offset(device_t dev, device_t child, int rid, uint32_t offset, uint32_t *deltap) { return (CARD_SET_MEMORY_OFFSET(device_get_parent(dev), child, rid, offset, deltap)); } static void pccard_probe_nomatch(device_t bus, device_t child) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct pccard_function *pf = devi->pf; struct pccard_softc *sc = PCCARD_SOFTC(bus); int i; device_printf(bus, ""); printf(" (manufacturer=0x%04x, product=0x%04x, function_type=%d) " "at function %d\n", sc->card.manufacturer, sc->card.product, pf->function, pf->number); device_printf(bus, " CIS info: "); for (i = 0; sc->card.cis1_info[i] != NULL && i < 4; i++) printf("%s%s", i > 0 ? ", " : "", sc->card.cis1_info[i]); printf("\n"); return; } static int pccard_child_location_str(device_t bus, device_t child, char *buf, size_t buflen) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct pccard_function *pf = devi->pf; snprintf(buf, buflen, "function=%d", pf->number); return (0); } static int pccard_child_pnpinfo_str(device_t bus, device_t child, char *buf, size_t buflen) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct pccard_function *pf = devi->pf; struct pccard_softc *sc = PCCARD_SOFTC(bus); struct sbuf sb; sbuf_new(&sb, buf, buflen, SBUF_FIXEDLEN | SBUF_INCLUDENUL); sbuf_printf(&sb, "manufacturer=0x%04x product=0x%04x " "cisvendor=\"", sc->card.manufacturer, sc->card.product); devctl_safe_quote_sb(&sb, sc->card.cis1_info[0]); sbuf_printf(&sb, "\" cisproduct=\""); devctl_safe_quote_sb(&sb, sc->card.cis1_info[1]); sbuf_printf(&sb, "\" function_type=%d", pf->function); sbuf_finish(&sb); sbuf_delete(&sb); return (0); } static int pccard_read_ivar(device_t bus, device_t child, int which, uintptr_t *result) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct pccard_function *pf = devi->pf; struct pccard_softc *sc = PCCARD_SOFTC(bus); if (!pf) panic("No pccard function pointer"); switch (which) { default: return (EINVAL); case PCCARD_IVAR_FUNCE_DISK: *(uint16_t *)result = pf->pf_funce_disk_interface | (pf->pf_funce_disk_power << 8); break; case PCCARD_IVAR_ETHADDR: bcopy(pf->pf_funce_lan_nid, result, ETHER_ADDR_LEN); break; case PCCARD_IVAR_VENDOR: *(uint32_t *)result = sc->card.manufacturer; break; case PCCARD_IVAR_PRODUCT: *(uint32_t *)result = sc->card.product; break; case PCCARD_IVAR_PRODEXT: *(uint16_t *)result = sc->card.prodext; break; case PCCARD_IVAR_FUNCTION: *(uint32_t *)result = pf->function; break; case PCCARD_IVAR_FUNCTION_NUMBER: *(uint32_t *)result = pf->number; break; case PCCARD_IVAR_VENDOR_STR: *(const char **)result = sc->card.cis1_info[0]; break; case PCCARD_IVAR_PRODUCT_STR: *(const char **)result = sc->card.cis1_info[1]; break; case PCCARD_IVAR_CIS3_STR: *(const char **)result = sc->card.cis1_info[2]; break; case PCCARD_IVAR_CIS4_STR: *(const char **)result = sc->card.cis1_info[3]; break; } return (0); } static void pccard_driver_added(device_t dev, driver_t *driver) { struct pccard_softc *sc = PCCARD_SOFTC(dev); struct pccard_function *pf; device_t child; STAILQ_FOREACH(pf, &sc->card.pf_head, pf_list) { if (STAILQ_EMPTY(&pf->cfe_head)) continue; child = pf->dev; if (device_get_state(child) != DS_NOTPRESENT) continue; pccard_probe_and_attach_child(dev, child, pf); } return; } static struct resource * pccard_alloc_resource(device_t dev, device_t child, int type, int *rid, rman_res_t start, rman_res_t end, rman_res_t count, u_int flags) { struct pccard_ivar *dinfo; struct resource_list_entry *rle = NULL; int passthrough = (device_get_parent(child) != dev); int isdefault = (RMAN_IS_DEFAULT_RANGE(start, end) && count == 1); struct resource *r = NULL; /* XXX I'm no longer sure this is right */ if (passthrough) { return (BUS_ALLOC_RESOURCE(device_get_parent(dev), child, type, rid, start, end, count, flags)); } dinfo = device_get_ivars(child); rle = resource_list_find(&dinfo->resources, type, *rid); if (rle == NULL && isdefault) return (NULL); /* no resource of that type/rid */ if (rle == NULL || rle->res == NULL) { /* XXX Need to adjust flags */ r = bus_alloc_resource(dev, type, rid, start, end, count, flags); if (r == NULL) goto bad; resource_list_add(&dinfo->resources, type, *rid, rman_get_start(r), rman_get_end(r), count); rle = resource_list_find(&dinfo->resources, type, *rid); if (!rle) goto bad; rle->res = r; } /* * If dev doesn't own the device, then we can't give this device * out. */ if (rman_get_device(rle->res) != dev) return (NULL); rman_set_device(rle->res, child); if (flags & RF_ACTIVE) BUS_ACTIVATE_RESOURCE(dev, child, type, *rid, rle->res); return (rle->res); bad:; device_printf(dev, "WARNING: Resource not reserved by pccard\n"); return (NULL); } static int pccard_release_resource(device_t dev, device_t child, int type, int rid, struct resource *r) { struct pccard_ivar *dinfo; int passthrough = (device_get_parent(child) != dev); struct resource_list_entry *rle = NULL; if (passthrough) return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, type, rid, r); dinfo = device_get_ivars(child); rle = resource_list_find(&dinfo->resources, type, rid); if (!rle) { device_printf(dev, "Allocated resource not found, " "%d %#x %#jx %#jx\n", type, rid, rman_get_start(r), rman_get_size(r)); return ENOENT; } if (!rle->res) { device_printf(dev, "Allocated resource not recorded\n"); return ENOENT; } /* * Deactivate the resource (since it is being released), and * assign it to the bus. */ BUS_DEACTIVATE_RESOURCE(dev, child, type, rid, rle->res); rman_set_device(rle->res, dev); return (0); } static void pccard_child_detached(device_t parent, device_t dev) { struct pccard_ivar *ivar = PCCARD_IVAR(dev); struct pccard_function *pf = ivar->pf; pccard_function_disable(pf); } static int pccard_filter(void *arg) { struct pccard_function *pf = (struct pccard_function*) arg; int reg; int doisr = 1; /* * MFC cards know if they interrupted, so we have to ack the * interrupt and call the ISR. Non-MFC cards don't have these * bits, so they always get called. Many non-MFC cards have * this bit set always upon read, but some do not. * * We always ack the interrupt, even if there's no ISR * for the card. This is done on the theory that acking * the interrupt will pacify the card enough to keep an * interrupt storm from happening. Of course this won't * help in the non-MFC case. * * This has no impact for MPSAFEness of the client drivers. * We register this with whatever flags the intr_handler * was registered with. All these functions are MPSAFE. */ if (pccard_mfc(pf->sc)) { reg = pccard_ccr_read(pf, PCCARD_CCR_STATUS); if (reg & PCCARD_CCR_STATUS_INTR) pccard_ccr_write(pf, PCCARD_CCR_STATUS, reg & ~PCCARD_CCR_STATUS_INTR); else doisr = 0; } if (doisr) { if (pf->intr_filter != NULL) return (pf->intr_filter(pf->intr_handler_arg)); return (FILTER_SCHEDULE_THREAD); } return (FILTER_STRAY); } static void pccard_intr(void *arg) { struct pccard_function *pf = (struct pccard_function*) arg; pf->intr_handler(pf->intr_handler_arg); } static int pccard_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, driver_filter_t *filt, driver_intr_t *intr, void *arg, void **cookiep) { struct pccard_softc *sc = PCCARD_SOFTC(dev); struct pccard_ivar *ivar = PCCARD_IVAR(child); struct pccard_function *pf = ivar->pf; int err; if (pf->intr_filter != NULL || pf->intr_handler != NULL) panic("Only one interrupt handler per function allowed"); pf->intr_filter = filt; pf->intr_handler = intr; pf->intr_handler_arg = arg; err = bus_generic_setup_intr(dev, child, irq, flags, pccard_filter, intr ? pccard_intr : NULL, pf, cookiep); if (err != 0) { pf->intr_filter = NULL; pf->intr_handler = NULL; return (err); } pf->intr_handler_cookie = *cookiep; if (pccard_mfc(sc)) { pccard_ccr_write(pf, PCCARD_CCR_OPTION, pccard_ccr_read(pf, PCCARD_CCR_OPTION) | PCCARD_CCR_OPTION_IREQ_ENABLE); } return (0); } static int pccard_teardown_intr(device_t dev, device_t child, struct resource *r, void *cookie) { struct pccard_softc *sc = PCCARD_SOFTC(dev); struct pccard_ivar *ivar = PCCARD_IVAR(child); struct pccard_function *pf = ivar->pf; int ret; if (pccard_mfc(sc)) { pccard_ccr_write(pf, PCCARD_CCR_OPTION, pccard_ccr_read(pf, PCCARD_CCR_OPTION) & ~PCCARD_CCR_OPTION_IREQ_ENABLE); } ret = bus_generic_teardown_intr(dev, child, r, cookie); if (ret == 0) { pf->intr_handler = NULL; pf->intr_handler_arg = NULL; pf->intr_handler_cookie = NULL; } return (ret); } static int pccard_activate_resource(device_t brdev, device_t child, int type, int rid, struct resource *r) { struct pccard_ivar *ivar = PCCARD_IVAR(child); struct pccard_function *pf = ivar->pf; switch(type) { case SYS_RES_IOPORT: /* * We need to adjust IOBASE[01] and IOSIZE if we're an MFC * card. */ if (pccard_mfc(pf->sc)) pccard_mfc_adjust_iobase(pf, rman_get_start(r), 0, rman_get_size(r)); break; default: break; } return (bus_generic_activate_resource(brdev, child, type, rid, r)); } static int pccard_deactivate_resource(device_t brdev, device_t child, int type, int rid, struct resource *r) { /* XXX undo pccard_activate_resource? XXX */ return (bus_generic_deactivate_resource(brdev, child, type, rid, r)); } static int pccard_attr_read_impl(device_t brdev, device_t child, uint32_t offset, uint8_t *val) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct pccard_function *pf = devi->pf; /* * Optimization. Most of the time, devices want to access * the same page of the attribute memory that the CCR is in. * We take advantage of this fact here. */ if (offset / PCCARD_MEM_PAGE_SIZE == pf->ccr_base / PCCARD_MEM_PAGE_SIZE) *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset % PCCARD_MEM_PAGE_SIZE); else { CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset, &offset); *val = bus_space_read_1(pf->pf_ccrt, pf->pf_ccrh, offset); CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base, &offset); } return 0; } static int pccard_attr_write_impl(device_t brdev, device_t child, uint32_t offset, uint8_t val) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct pccard_function *pf = devi->pf; /* * Optimization. Most of the time, devices want to access * the same page of the attribute memory that the CCR is in. * We take advantage of this fact here. */ if (offset / PCCARD_MEM_PAGE_SIZE == pf->ccr_base / PCCARD_MEM_PAGE_SIZE) bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset % PCCARD_MEM_PAGE_SIZE, val); else { CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, offset, &offset); bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, offset, val); CARD_SET_MEMORY_OFFSET(brdev, child, pf->ccr_rid, pf->ccr_base, &offset); } return 0; } static int pccard_ccr_read_impl(device_t brdev, device_t child, uint32_t offset, uint8_t *val) { struct pccard_ivar *devi = PCCARD_IVAR(child); *val = pccard_ccr_read(devi->pf, offset); DEVPRINTF((child, "ccr_read of %#x (%#x) is %#x\n", offset, devi->pf->pf_ccr_offset, *val)); return 0; } static int pccard_ccr_write_impl(device_t brdev, device_t child, uint32_t offset, uint8_t val) { struct pccard_ivar *devi = PCCARD_IVAR(child); struct pccard_function *pf = devi->pf; /* * Can't use pccard_ccr_write since client drivers may access * registers not contained in the 'mask' if they are non-standard. */ DEVPRINTF((child, "ccr_write of %#x to %#x (%#x)\n", val, offset, devi->pf->pf_ccr_offset)); bus_space_write_1(pf->pf_ccrt, pf->pf_ccrh, pf->pf_ccr_offset + offset, val); return 0; } static device_method_t pccard_methods[] = { /* Device interface */ DEVMETHOD(device_probe, pccard_probe), DEVMETHOD(device_attach, pccard_attach), DEVMETHOD(device_detach, pccard_detach), DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD(device_suspend, pccard_suspend), DEVMETHOD(device_resume, pccard_resume), /* Bus interface */ DEVMETHOD(bus_print_child, pccard_print_child), DEVMETHOD(bus_driver_added, pccard_driver_added), DEVMETHOD(bus_child_detached, pccard_child_detached), DEVMETHOD(bus_alloc_resource, pccard_alloc_resource), DEVMETHOD(bus_release_resource, pccard_release_resource), DEVMETHOD(bus_activate_resource, pccard_activate_resource), DEVMETHOD(bus_deactivate_resource, pccard_deactivate_resource), DEVMETHOD(bus_setup_intr, pccard_setup_intr), DEVMETHOD(bus_teardown_intr, pccard_teardown_intr), DEVMETHOD(bus_set_resource, pccard_set_resource), DEVMETHOD(bus_get_resource, pccard_get_resource), DEVMETHOD(bus_delete_resource, pccard_delete_resource), DEVMETHOD(bus_probe_nomatch, pccard_probe_nomatch), DEVMETHOD(bus_read_ivar, pccard_read_ivar), DEVMETHOD(bus_child_pnpinfo_str, pccard_child_pnpinfo_str), DEVMETHOD(bus_child_location_str, pccard_child_location_str), /* Card Interface */ DEVMETHOD(card_set_res_flags, pccard_set_res_flags), DEVMETHOD(card_set_memory_offset, pccard_set_memory_offset), DEVMETHOD(card_attach_card, pccard_attach_card), DEVMETHOD(card_detach_card, pccard_detach_card), DEVMETHOD(card_do_product_lookup, pccard_do_product_lookup), DEVMETHOD(card_cis_scan, pccard_scan_cis), DEVMETHOD(card_attr_read, pccard_attr_read_impl), DEVMETHOD(card_attr_write, pccard_attr_write_impl), DEVMETHOD(card_ccr_read, pccard_ccr_read_impl), DEVMETHOD(card_ccr_write, pccard_ccr_write_impl), { 0, 0 } }; static driver_t pccard_driver = { "pccard", pccard_methods, sizeof(struct pccard_softc) }; devclass_t pccard_devclass; /* Maybe we need to have a slot device? */ DRIVER_MODULE(pccard, pcic, pccard_driver, pccard_devclass, 0, 0); DRIVER_MODULE(pccard, cbb, pccard_driver, pccard_devclass, 0, 0); MODULE_VERSION(pccard, 1);