/* * Copyright (c) 2002 M. Warner Losh. * Copyright (c) 2000,2001 Jonathan Chen. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer, * without modification, immediately at the beginning of the file. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD: src/sys/dev/pccbb/pccbb.c,v 1.64 2002/11/23 23:09:45 imp Exp $ * $DragonFly: src/sys/dev/pccard/pccbb/pccbb.c,v 1.3 2004/07/10 16:25:59 dillon Exp $ */ /* * Copyright (c) 1998, 1999 and 2000 * HAYAKAWA Koichi. 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 HAYAKAWA Koichi. * 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. */ /* * Driver for PCI to CardBus Bridge chips * * References: * TI Datasheets: * http://www-s.ti.com/cgi-bin/sc/generic2.cgi?family=PCI+CARDBUS+CONTROLLERS * * Written by Jonathan Chen * The author would like to acknowledge: * * HAYAKAWA Koichi: Author of the NetBSD code for the same thing * * Warner Losh: Newbus/newcard guru and author of the pccard side of things * * YAMAMOTO Shigeru: Author of another FreeBSD cardbus driver * * David Cross: Author of the initial ugly hack for a specific cardbus card */ #include #include #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" #include "pcib_if.h" #define DPRINTF(x) do { if (cbb_debug) printf x; } while (0) #define DEVPRINTF(x) do { if (cbb_debug) device_printf x; } while (0) #define PCI_MASK_CONFIG(DEV,REG,MASK,SIZE) \ pci_write_config(DEV, REG, pci_read_config(DEV, REG, SIZE) MASK, SIZE) #define PCI_MASK2_CONFIG(DEV,REG,MASK1,MASK2,SIZE) \ pci_write_config(DEV, REG, ( \ pci_read_config(DEV, REG, SIZE) MASK1) MASK2, SIZE) #define CBB_START_MEM 0x88000000 #define CBB_START_32_IO 0x1000 #define CBB_START_16_IO 0x100 struct yenta_chipinfo { uint32_t yc_id; const char *yc_name; int yc_chiptype; } yc_chipsets[] = { /* Texas Instruments chips */ {PCIC_ID_TI1031, "TI1031 PCI-PC Card Bridge", CB_TI113X}, {PCIC_ID_TI1130, "TI1130 PCI-CardBus Bridge", CB_TI113X}, {PCIC_ID_TI1131, "TI1131 PCI-CardBus Bridge", CB_TI113X}, {PCIC_ID_TI1210, "TI1210 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1211, "TI1211 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1220, "TI1220 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1221, "TI1221 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1225, "TI1225 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1250, "TI1250 PCI-CardBus Bridge", CB_TI125X}, {PCIC_ID_TI1251, "TI1251 PCI-CardBus Bridge", CB_TI125X}, {PCIC_ID_TI1251B,"TI1251B PCI-CardBus Bridge",CB_TI125X}, {PCIC_ID_TI1260, "TI1260 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1260B,"TI1260B PCI-CardBus Bridge",CB_TI12XX}, {PCIC_ID_TI1410, "TI1410 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1420, "TI1420 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1421, "TI1421 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1450, "TI1450 PCI-CardBus Bridge", CB_TI125X}, /*SIC!*/ {PCIC_ID_TI1451, "TI1451 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1510, "TI1510 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI1520, "TI1520 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI4410, "TI4410 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI4450, "TI4450 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI4451, "TI4451 PCI-CardBus Bridge", CB_TI12XX}, {PCIC_ID_TI4510, "TI4510 PCI-CardBus Bridge", CB_TI12XX}, /* Ricoh chips */ {PCIC_ID_RICOH_RL5C465, "RF5C465 PCI-CardBus Bridge", CB_RF5C46X}, {PCIC_ID_RICOH_RL5C466, "RF5C466 PCI-CardBus Bridge", CB_RF5C46X}, {PCIC_ID_RICOH_RL5C475, "RF5C475 PCI-CardBus Bridge", CB_RF5C47X}, {PCIC_ID_RICOH_RL5C476, "RF5C476 PCI-CardBus Bridge", CB_RF5C47X}, {PCIC_ID_RICOH_RL5C477, "RF5C477 PCI-CardBus Bridge", CB_RF5C47X}, {PCIC_ID_RICOH_RL5C478, "RF5C478 PCI-CardBus Bridge", CB_RF5C47X}, /* Toshiba products */ {PCIC_ID_TOPIC95, "ToPIC95 PCI-CardBus Bridge", CB_TOPIC95}, {PCIC_ID_TOPIC95B, "ToPIC95B PCI-CardBus Bridge", CB_TOPIC95}, {PCIC_ID_TOPIC97, "ToPIC97 PCI-CardBus Bridge", CB_TOPIC97}, {PCIC_ID_TOPIC100, "ToPIC100 PCI-CardBus Bridge", CB_TOPIC97}, /* Cirrus Logic */ {PCIC_ID_CLPD6832, "CLPD6832 PCI-CardBus Bridge", CB_CIRRUS}, {PCIC_ID_CLPD6833, "CLPD6833 PCI-CardBus Bridge", CB_CIRRUS}, {PCIC_ID_CLPD6834, "CLPD6834 PCI-CardBus Bridge", CB_CIRRUS}, /* 02Micro */ {PCIC_ID_OZ6832, "O2Micro OZ6832/6833 PCI-CardBus Bridge", CB_CIRRUS}, {PCIC_ID_OZ6860, "O2Micro OZ6836/6860 PCI-CardBus Bridge", CB_CIRRUS}, {PCIC_ID_OZ6872, "O2Micro OZ6812/6872 PCI-CardBus Bridge", CB_CIRRUS}, {PCIC_ID_OZ6912, "O2Micro OZ6912/6972 PCI-CardBus Bridge", CB_CIRRUS}, {PCIC_ID_OZ6922, "O2Micro OZ6822 PCI-CardBus Bridge", CB_CIRRUS}, {PCIC_ID_OZ6933, "O2Micro OZ6833 PCI-CardBus Bridge", CB_CIRRUS}, /* sentinel */ {0 /* null id */, "unknown", CB_UNKNOWN}, }; /* sysctl vars */ SYSCTL_NODE(_hw, OID_AUTO, cbb, CTLFLAG_RD, 0, "CBB parameters"); /* There's no way to say TUNEABLE_LONG to get the right types */ u_long cbb_start_mem = CBB_START_MEM; TUNABLE_INT("hw.cbb.start_memory", (int *)&cbb_start_mem); SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_memory, CTLFLAG_RW, &cbb_start_mem, CBB_START_MEM, "Starting address for memory allocations"); u_long cbb_start_16_io = CBB_START_16_IO; TUNABLE_INT("hw.cbb.start_16_io", (int *)&cbb_start_16_io); SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_16_io, CTLFLAG_RW, &cbb_start_16_io, CBB_START_16_IO, "Starting ioport for 16-bit cards"); u_long cbb_start_32_io = CBB_START_32_IO; TUNABLE_INT("hw.cbb.start_32_io", (int *)&cbb_start_32_io); SYSCTL_ULONG(_hw_cbb, OID_AUTO, start_32_io, CTLFLAG_RW, &cbb_start_32_io, CBB_START_32_IO, "Starting ioport for 32-bit cards"); int cbb_debug = 0; TUNABLE_INT("hw.cbb.debug", &cbb_debug); SYSCTL_ULONG(_hw_cbb, OID_AUTO, debug, CTLFLAG_RW, &cbb_debug, 0, "Verbose cardbus bridge debugging"); static int cbb_chipset(uint32_t pci_id, const char **namep); static int cbb_probe(device_t brdev); static void cbb_chipinit(struct cbb_softc *sc); static int cbb_attach(device_t brdev); static void cbb_release_helper(device_t brdev); static int cbb_detach(device_t brdev); static int cbb_shutdown(device_t brdev); static void cbb_driver_added(device_t brdev, driver_t *driver); static void cbb_child_detached(device_t brdev, device_t child); static void cbb_event_thread(void *arg); static void cbb_insert(struct cbb_softc *sc); static void cbb_removal(struct cbb_softc *sc); static void cbb_intr(void *arg); static int cbb_detect_voltage(device_t brdev); static int cbb_power(device_t brdev, int volts); static void cbb_cardbus_reset(device_t brdev); static int cbb_cardbus_power_enable_socket(device_t brdev, device_t child); static void cbb_cardbus_power_disable_socket(device_t brdev, device_t child); static int cbb_cardbus_io_open(device_t brdev, int win, uint32_t start, uint32_t end); static int cbb_cardbus_mem_open(device_t brdev, int win, uint32_t start, uint32_t end); static void cbb_cardbus_auto_open(struct cbb_softc *sc, int type); static int cbb_cardbus_activate_resource(device_t brdev, device_t child, int type, int rid, struct resource *res); static int cbb_cardbus_deactivate_resource(device_t brdev, device_t child, int type, int rid, struct resource *res); static struct resource *cbb_cardbus_alloc_resource(device_t brdev, device_t child, int type, int *rid, u_long start, u_long end, u_long count, uint flags); static int cbb_cardbus_release_resource(device_t brdev, device_t child, int type, int rid, struct resource *res); static int cbb_power_enable_socket(device_t brdev, device_t child); static void cbb_power_disable_socket(device_t brdev, device_t child); static int cbb_activate_resource(device_t brdev, device_t child, int type, int rid, struct resource *r); static int cbb_deactivate_resource(device_t brdev, device_t child, int type, int rid, struct resource *r); static struct resource *cbb_alloc_resource(device_t brdev, device_t child, int type, int *rid, u_long start, u_long end, u_long count, uint flags); static int cbb_release_resource(device_t brdev, device_t child, int type, int rid, struct resource *r); static int cbb_read_ivar(device_t brdev, device_t child, int which, uintptr_t *result); static int cbb_write_ivar(device_t brdev, device_t child, int which, uintptr_t value); static int cbb_maxslots(device_t brdev); static uint32_t cbb_read_config(device_t brdev, int b, int s, int f, int reg, int width); static void cbb_write_config(device_t brdev, int b, int s, int f, int reg, uint32_t val, int width); /* */ static __inline void cbb_set(struct cbb_softc *sc, uint32_t reg, uint32_t val) { bus_space_write_4(sc->bst, sc->bsh, reg, val); } static __inline uint32_t cbb_get(struct cbb_softc *sc, uint32_t reg) { return (bus_space_read_4(sc->bst, sc->bsh, reg)); } static __inline void cbb_setb(struct cbb_softc *sc, uint32_t reg, uint32_t bits) { cbb_set(sc, reg, cbb_get(sc, reg) | bits); } static __inline void cbb_clrb(struct cbb_softc *sc, uint32_t reg, uint32_t bits) { cbb_set(sc, reg, cbb_get(sc, reg) & ~bits); } static void cbb_remove_res(struct cbb_softc *sc, struct resource *res) { struct cbb_reslist *rle; SLIST_FOREACH(rle, &sc->rl, link) { if (rle->res == res) { SLIST_REMOVE(&sc->rl, rle, cbb_reslist, link); free(rle, M_DEVBUF); return; } } } static struct resource * cbb_find_res(struct cbb_softc *sc, int type, int rid) { struct cbb_reslist *rle; SLIST_FOREACH(rle, &sc->rl, link) if (SYS_RES_MEMORY == rle->type && rid == rle->rid) return (rle->res); return (NULL); } static void cbb_insert_res(struct cbb_softc *sc, struct resource *res, int type, int rid) { struct cbb_reslist *rle; /* * Need to record allocated resource so we can iterate through * it later. */ rle = malloc(sizeof(struct cbb_reslist), M_DEVBUF, M_NOWAIT); if (!res) panic("cbb_cardbus_alloc_resource: can't record entry!"); rle->res = res; rle->type = type; rle->rid = rid; SLIST_INSERT_HEAD(&sc->rl, rle, link); } static void cbb_destroy_res(struct cbb_softc *sc) { struct cbb_reslist *rle; while ((rle = SLIST_FIRST(&sc->rl)) != NULL) { device_printf(sc->dev, "Danger Will Robinson: Resource " "left allocated! This is a bug... " "(rid=%x, type=%d, addr=%lx)\n", rle->rid, rle->type, rman_get_start(rle->res)); SLIST_REMOVE_HEAD(&sc->rl, link); free(rle, M_DEVBUF); } } /************************************************************************/ /* Probe/Attach */ /************************************************************************/ static int cbb_chipset(uint32_t pci_id, const char **namep) { struct yenta_chipinfo *ycp; for (ycp = yc_chipsets; ycp->yc_id != 0 && pci_id != ycp->yc_id; ++ycp) continue; if (namep != NULL) *namep = ycp->yc_name; return (ycp->yc_chiptype); } static int cbb_probe(device_t brdev) { const char *name; uint32_t progif; uint32_t subclass; /* * Do we know that we support the chipset? If so, then we * accept the device. */ if (cbb_chipset(pci_get_devid(brdev), &name) != CB_UNKNOWN) { device_set_desc(brdev, name); return (0); } /* * We do support generic CardBus bridges. All that we've seen * to date have progif 0 (the Yenta spec, and successors mandate * this). We do not support PCI PCMCIA bridges (with one exception) * with this driver since they generally are I/O mapped. Those * are supported by the pcic driver. This should help us be more * future proof. */ subclass = pci_get_subclass(brdev); progif = pci_get_progif(brdev); if (subclass == PCIS_BRIDGE_CARDBUS && progif == 0) { device_set_desc(brdev, "PCI-CardBus Bridge"); return (0); } return (ENXIO); } static void cbb_chipinit(struct cbb_softc *sc) { uint32_t mux, sysctrl; /* Set CardBus latency timer */ if (pci_read_config(sc->dev, PCIR_SECLAT_1, 1) < 0x20) pci_write_config(sc->dev, PCIR_SECLAT_1, 0x20, 1); /* Set PCI latency timer */ if (pci_read_config(sc->dev, PCIR_LATTIMER, 1) < 0x20) pci_write_config(sc->dev, PCIR_LATTIMER, 0x20, 1); /* Enable memory access */ PCI_MASK_CONFIG(sc->dev, PCIR_COMMAND, | PCIM_CMD_MEMEN | PCIM_CMD_PORTEN | PCIM_CMD_BUSMASTEREN, 2); /* disable Legacy IO */ switch (sc->chipset) { case CB_RF5C46X: PCI_MASK_CONFIG(sc->dev, CBBR_BRIDGECTRL, & ~(CBBM_BRIDGECTRL_RL_3E0_EN | CBBM_BRIDGECTRL_RL_3E2_EN), 2); break; default: pci_write_config(sc->dev, CBBR_LEGACY, 0x0, 4); break; } /* Use PCI interrupt for interrupt routing */ PCI_MASK2_CONFIG(sc->dev, CBBR_BRIDGECTRL, & ~(CBBM_BRIDGECTRL_MASTER_ABORT | CBBM_BRIDGECTRL_INTR_IREQ_EN), | CBBM_BRIDGECTRL_WRITE_POST_EN, 2); /* * XXX this should be a function table, ala OLDCARD. This means * that we could more easily support ISA interrupts for pccard * cards if we had to. */ switch (sc->chipset) { case CB_TI113X: /* * The TI 1031, TI 1130 and TI 1131 all require another bit * be set to enable PCI routing of interrupts, and then * a bit for each of the CSC and Function interrupts we * want routed. */ PCI_MASK_CONFIG(sc->dev, CBBR_CBCTRL, | CBBM_CBCTRL_113X_PCI_INTR | CBBM_CBCTRL_113X_PCI_CSC | CBBM_CBCTRL_113X_PCI_IRQ_EN, 1); PCI_MASK_CONFIG(sc->dev, CBBR_DEVCTRL, & ~(CBBM_DEVCTRL_INT_SERIAL | CBBM_DEVCTRL_INT_PCI), 1); break; case CB_TI12XX: /* * Some TI 12xx (and [14][45]xx) based pci cards * sometimes have issues with the MFUNC register not * being initialized due to a bad EEPROM on board. * Laptops that this matters on have this register * properly initialized. * * The TI125X parts have a different register. */ mux = pci_read_config(sc->dev, CBBR_MFUNC, 4); sysctrl = pci_read_config(sc->dev, CBBR_SYSCTRL, 4); if (mux == 0) { mux = (mux & ~CBBM_MFUNC_PIN0) | CBBM_MFUNC_PIN0_INTA; if ((sysctrl & CBBM_SYSCTRL_INTRTIE) == 0) mux = (mux & ~CBBM_MFUNC_PIN1) | CBBM_MFUNC_PIN1_INTB; pci_write_config(sc->dev, CBBR_MFUNC, mux, 4); } /*FALLTHROUGH*/ case CB_TI125X: /* * Disable zoom video. Some machines initialize this * improperly and exerpience has shown that this helps * on some machines. */ pci_write_config(sc->dev, CBBR_MMCTRL, 0, 4); break; case CB_TOPIC97: /* * Disable Zoom Video, ToPIC 97, 100. */ pci_write_config(sc->dev, CBBR_TOPIC_ZV_CONTROL, 0, 1); /* * ToPIC 97, 100 * At offset 0xa1: INTERRUPT CONTROL register * 0x1: Turn on INT interrupts. */ PCI_MASK_CONFIG(sc->dev, CBBR_TOPIC_INTCTRL, | CBBM_TOPIC_INTCTRL_INTIRQSEL, 1); goto topic_common; case CB_TOPIC95: /* * SOCKETCTRL appears to be TOPIC 95/B specific */ PCI_MASK_CONFIG(sc->dev, CBBR_TOPIC_SOCKETCTRL, | CBBM_TOPIC_SOCKETCTRL_SCR_IRQSEL, 4); topic_common:; /* * At offset 0xa0: SLOT CONTROL * 0x80 Enable CardBus Functionality * 0x40 Enable CardBus and PC Card registers * 0x20 Lock ID in exca regs * 0x10 Write protect ID in config regs * Clear the rest of the bits, which defaults the slot * in legacy mode to 0x3e0 and offset 0. (legacy * mode is determined elsewhere) */ pci_write_config(sc->dev, CBBR_TOPIC_SLOTCTRL, CBBM_TOPIC_SLOTCTRL_SLOTON | CBBM_TOPIC_SLOTCTRL_SLOTEN | CBBM_TOPIC_SLOTCTRL_ID_LOCK | CBBM_TOPIC_SLOTCTRL_ID_WP, 1); /* * At offset 0xa3 Card Detect Control Register * 0x80 CARDBUS enbale * 0x01 Cleared for hardware change detect */ PCI_MASK2_CONFIG(sc->dev, CBBR_TOPIC_CDC, | CBBM_TOPIC_CDC_CARDBUS, & ~CBBM_TOPIC_CDC_SWDETECT, 4); break; } /* * Need to tell ExCA registers to route via PCI interrupts. There * are two ways to do this. Once is to set INTR_ENABLE and the * other is to set CSC to 0. Since both methods are mutually * compatible, we do both. */ exca_write(&sc->exca, EXCA_INTR, EXCA_INTR_ENABLE); exca_write(&sc->exca, EXCA_CSC_INTR, 0); /* close all memory and io windows */ pci_write_config(sc->dev, CBBR_MEMBASE0, 0xffffffff, 4); pci_write_config(sc->dev, CBBR_MEMLIMIT0, 0, 4); pci_write_config(sc->dev, CBBR_MEMBASE1, 0xffffffff, 4); pci_write_config(sc->dev, CBBR_MEMLIMIT1, 0, 4); pci_write_config(sc->dev, CBBR_IOBASE0, 0xffffffff, 4); pci_write_config(sc->dev, CBBR_IOLIMIT0, 0, 4); pci_write_config(sc->dev, CBBR_IOBASE1, 0xffffffff, 4); pci_write_config(sc->dev, CBBR_IOLIMIT1, 0, 4); } static int cbb_attach(device_t brdev) { struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(brdev); int rid; lockinit(&sc->lock, 0, "cbb", 0, 0); sc->chipset = cbb_chipset(pci_get_devid(brdev), NULL); sc->dev = brdev; sc->cbdev = NULL; sc->pccarddev = NULL; sc->secbus = pci_read_config(brdev, PCIR_SECBUS_2, 1); sc->subbus = pci_read_config(brdev, PCIR_SUBBUS_2, 1); SLIST_INIT(&sc->rl); STAILQ_INIT(&sc->intr_handlers); #ifndef BURN_THE_BOATS /* * The PCI bus code should assign us memory in the absense * of the BIOS doing so. However, 'should' isn't 'is,' so we kludge * up something here until the PCI/acpi code properly assigns the * resource. */ #endif rid = CBBR_SOCKBASE; sc->base_res = bus_alloc_resource(brdev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE); if (!sc->base_res) { #ifdef BURN_THE_BOATS device_printf(brdev, "Could not map register memory\n"); return (ENOMEM); #else uint32_t sockbase; /* * Generally, the BIOS will assign this memory for us. * However, newer BIOSes do not because the MS design * documents have mandated that this is for the OS * to assign rather than the BIOS. This driver shouldn't * be doing this, but until the pci bus code (or acpi) * does this, we allow CardBus bridges to work on more * machines. */ sockbase = pci_read_config(brdev, rid, 4); if (sockbase < 0x100000 || sockbase >= 0xfffffff0) { pci_write_config(brdev, rid, 0xffffffff, 4); sockbase = pci_read_config(brdev, rid, 4); sockbase = (sockbase & 0xfffffff0) & -(sockbase & 0xfffffff0); sc->base_res = bus_generic_alloc_resource( device_get_parent(brdev), brdev, SYS_RES_MEMORY, &rid, cbb_start_mem, ~0, sockbase, RF_ACTIVE|rman_make_alignment_flags(sockbase)); if (!sc->base_res) { device_printf(brdev, "Could not grab register memory\n"); return (ENOMEM); } sc->flags |= CBB_KLUDGE_ALLOC; pci_write_config(brdev, CBBR_SOCKBASE, rman_get_start(sc->base_res), 4); DEVPRINTF((brdev, "PCI Memory allocated: %08lx\n", rman_get_start(sc->base_res))); } else { device_printf(brdev, "Could not map register memory\n"); goto err; } #endif } sc->bst = rman_get_bustag(sc->base_res); sc->bsh = rman_get_bushandle(sc->base_res); exca_init(&sc->exca, brdev, sc->bst, sc->bsh, CBB_EXCA_OFFSET); sc->exca.flags |= EXCA_HAS_MEMREG_WIN; cbb_chipinit(sc); /* attach children */ sc->cbdev = device_add_child(brdev, "cardbus", -1); if (sc->cbdev == NULL) DEVPRINTF((brdev, "WARNING: cannot add cardbus bus.\n")); else if (device_probe_and_attach(sc->cbdev) != 0) { DEVPRINTF((brdev, "WARNING: cannot attach cardbus bus!\n")); sc->cbdev = NULL; } sc->pccarddev = device_add_child(brdev, "pccard", -1); if (sc->pccarddev == NULL) DEVPRINTF((brdev, "WARNING: cannot add pccard bus.\n")); else if (device_probe_and_attach(sc->pccarddev) != 0) { DEVPRINTF((brdev, "WARNING: cannot attach pccard bus.\n")); sc->pccarddev = NULL; } /* Map and establish the interrupt. */ rid = 0; sc->irq_res = bus_alloc_resource(brdev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); if (sc->irq_res == NULL) { printf("cbb: Unable to map IRQ...\n"); goto err; return (ENOMEM); } if (bus_setup_intr(brdev, sc->irq_res, INTR_TYPE_AV, cbb_intr, sc, &sc->intrhand)) { device_printf(brdev, "couldn't establish interrupt"); goto err; } /* reset 16-bit pcmcia bus */ exca_clrb(&sc->exca, EXCA_INTR, EXCA_INTR_RESET); /* turn off power */ cbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V); /* CSC Interrupt: Card detect interrupt on */ cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD); /* reset interrupt */ cbb_set(sc, CBB_SOCKET_EVENT, cbb_get(sc, CBB_SOCKET_EVENT)); /* Start the thread */ if (kthread_create(cbb_event_thread, sc, &sc->event_thread, "%s%d", device_get_name(sc->dev), device_get_unit(sc->dev))) { device_printf (sc->dev, "unable to create event thread.\n"); panic ("cbb_create_event_thread"); } return (0); err: if (sc->irq_res) bus_release_resource(brdev, SYS_RES_IRQ, 0, sc->irq_res); if (sc->base_res) { if (sc->flags & CBB_KLUDGE_ALLOC) bus_generic_release_resource(device_get_parent(brdev), brdev, SYS_RES_MEMORY, CBBR_SOCKBASE, sc->base_res); else bus_release_resource(brdev, SYS_RES_MEMORY, CBBR_SOCKBASE, sc->base_res); } return (ENOMEM); } /* * shutdown and detach both call the release helper to disable the interrupt * and cleanup the resources. */ static void cbb_release_helper(device_t brdev) { struct cbb_softc *sc = device_get_softc(brdev); lockmgr(&sc->lock, LK_EXCLUSIVE, NULL, curthread); sc->flags |= CBB_KTHREAD_DONE; lockmgr(&sc->lock, LK_RELEASE, NULL, curthread); if (sc->flags & CBB_KTHREAD_RUNNING) { wakeup(sc); tsleep(cbb_detach, 0, "pccbb", 2); } /* * Reset the bridge controller and reset the interrupt, then tear * it down (which disables the interrupt) and de-power. */ PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL, |CBBM_BRIDGECTRL_RESET, 2); exca_clrb(&sc->exca, EXCA_INTR, EXCA_INTR_RESET); bus_teardown_intr(brdev, sc->irq_res, sc->intrhand); cbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V); /* * Release interrupt and memory-mapped resources. Device memory * cannot be safely accessed after we do this. */ bus_release_resource(brdev, SYS_RES_IRQ, 0, sc->irq_res); if (sc->flags & CBB_KLUDGE_ALLOC) { bus_generic_release_resource(device_get_parent(brdev), brdev, SYS_RES_MEMORY, CBBR_SOCKBASE, sc->base_res); } else { bus_release_resource(brdev, SYS_RES_MEMORY, CBBR_SOCKBASE, sc->base_res); } } static int cbb_detach(device_t brdev) { device_t *devlist; int numdevs; int error; int i; device_get_children(brdev, &devlist, &numdevs); error = 0; for (i = 0; i < numdevs; i++) { if (device_detach(devlist[i]) == 0) device_delete_child(brdev, devlist[i]); else error++; } free (devlist, M_TEMP); if (error == 0) cbb_release_helper(brdev); else error = ENXIO; return (error); } static int cbb_shutdown(device_t brdev) { device_t *devlist; int numdevs; int i; device_get_children(brdev, &devlist, &numdevs); for (i = 0; i < numdevs; i++) { if (device_shutdown(devlist[i]) == 0) ; /* XXX delete the child without detach? */ } free (devlist, M_TEMP); cbb_release_helper(brdev); /* * This may prevent bios confusion on reboot for some bioses */ pci_write_config(brdev, PCIR_COMMAND, 0, 2); return (0); } static int cbb_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, driver_intr_t *intr, void *arg, void **cookiep) { struct cbb_intrhand *ih; struct cbb_softc *sc = device_get_softc(dev); /* * You aren't allowed to have fast interrupts for pccard/cardbus * things since those interrupts are PCI and shared. Since we use * the PCI interrupt for the status change interrupts, it can't be * free for use by the driver. Fast interrupts must not be shared. */ ih = malloc(sizeof(struct cbb_intrhand), M_DEVBUF, M_NOWAIT); if (ih == NULL) return (ENOMEM); *cookiep = ih; ih->intr = intr; ih->arg = arg; STAILQ_INSERT_TAIL(&sc->intr_handlers, ih, entries); /* * XXX we should do what old card does to ensure that we don't * XXX call the function's interrupt routine(s). */ /* * XXX need to turn on ISA interrupts, if we ever support them, but * XXX for now that's all we need to do. */ return (0); } static int cbb_teardown_intr(device_t dev, device_t child, struct resource *irq, void *cookie) { struct cbb_intrhand *ih; struct cbb_softc *sc = device_get_softc(dev); cbb_setb(sc, CBB_SOCKET_MASK, 0); /* Quiet hardware */ /* XXX Need to do different things for ISA interrupts. */ ih = (struct cbb_intrhand *) cookie; STAILQ_REMOVE(&sc->intr_handlers, ih, cbb_intrhand, entries); free(ih, M_DEVBUF); return (0); } static void cbb_driver_added(device_t brdev, driver_t *driver) { struct cbb_softc *sc = device_get_softc(brdev); device_t *devlist; int tmp; int numdevs; int wake; uint32_t sockstate; DEVICE_IDENTIFY(driver, brdev); device_get_children(brdev, &devlist, &numdevs); wake = 0; sockstate = cbb_get(sc, CBB_SOCKET_STATE); for (tmp = 0; tmp < numdevs; tmp++) { if (device_get_state(devlist[tmp]) == DS_NOTPRESENT && device_probe_and_attach(devlist[tmp]) == 0) { if (devlist[tmp] == NULL) /* NOTHING */; else if (strcmp(driver->name, "cardbus") == 0) { sc->cbdev = devlist[tmp]; if (((sockstate & CBB_SOCKET_STAT_CD) == 0) && (sockstate & CBB_SOCKET_STAT_CB)) wake++; } else if (strcmp(driver->name, "pccard") == 0) { sc->pccarddev = devlist[tmp]; if (((sockstate & CBB_SOCKET_STAT_CD) == 0) && (sockstate & CBB_SOCKET_STAT_16BIT)) wake++; } else device_printf(brdev, "Unsupported child bus: %s\n", driver->name); } } free(devlist, M_TEMP); if (wake > 0) { if ((cbb_get(sc, CBB_SOCKET_STATE) & CBB_SOCKET_STAT_CD) == 0) { wakeup(sc); } } } static void cbb_child_detached(device_t brdev, device_t child) { struct cbb_softc *sc = device_get_softc(brdev); if (child == sc->cbdev) sc->cbdev = NULL; else if (child == sc->pccarddev) sc->pccarddev = NULL; else device_printf(brdev, "Unknown child detached: %s %p/%p\n", device_get_nameunit(child), sc->cbdev, sc->pccarddev); } /************************************************************************/ /* Kthreads */ /************************************************************************/ static void cbb_event_thread(void *arg) { struct cbb_softc *sc = arg; uint32_t status; int err; /* * We take out Giant here because we need it deep, down in * the bowels of the vm system for mapping the memory we need * to read the CIS. We also need it for kthread_exit, which * drops it. */ sc->flags |= CBB_KTHREAD_RUNNING; while (1) { /* * Check to see if we have anything first so that * if there's a card already inserted, we do the * right thing. */ lockmgr(&sc->lock, LK_EXCLUSIVE, NULL, curthread); if (sc->flags & CBB_KTHREAD_DONE) break; status = cbb_get(sc, CBB_SOCKET_STATE); /* mtx_lock(&Giant); */ if ((status & CBB_SOCKET_STAT_CD) == 0) cbb_insert(sc); else cbb_removal(sc); lockmgr(&sc->lock, LK_RELEASE, NULL, curthread); /* mtx_unlock(&Giant); */ /* * Wait until it has been 1s since the last time we * get an interrupt. We handle the rest of the interrupt * at the top of the loop. */ err = tsleep(sc, 0, "pccbb", 0); while (err != EWOULDBLOCK && (sc->flags & CBB_KTHREAD_DONE) == 0) err = tsleep(sc, 0, "pccbb", 1 * hz); } sc->flags &= ~CBB_KTHREAD_RUNNING; lockmgr(&sc->lock, LK_RELEASE, NULL, curthread); /* mtx_lock(&Giant); */ kthread_exit(); } /************************************************************************/ /* Insert/removal */ /************************************************************************/ static void cbb_insert(struct cbb_softc *sc) { uint32_t sockevent, sockstate; sockevent = cbb_get(sc, CBB_SOCKET_EVENT); sockstate = cbb_get(sc, CBB_SOCKET_STATE); DEVPRINTF((sc->dev, "card inserted: event=0x%08x, state=%08x\n", sockevent, sockstate)); if (sockstate & CBB_SOCKET_STAT_16BIT) { if (sc->pccarddev != NULL) { sc->flags |= CBB_16BIT_CARD; sc->flags |= CBB_CARD_OK; if (CARD_ATTACH_CARD(sc->pccarddev) != 0) { device_printf(sc->dev, "PC Card card activation failed\n"); sc->flags &= ~CBB_CARD_OK; } } else { device_printf(sc->dev, "PC Card inserted, but no pccard bus.\n"); } } else if (sockstate & CBB_SOCKET_STAT_CB) { if (sc->cbdev != NULL) { sc->flags &= ~CBB_16BIT_CARD; sc->flags |= CBB_CARD_OK; if (CARD_ATTACH_CARD(sc->cbdev) != 0) { device_printf(sc->dev, "CardBus card activation failed\n"); sc->flags &= ~CBB_CARD_OK; } } else { device_printf(sc->dev, "CardBus card inserted, but no cardbus bus.\n"); } } else { /* * We should power the card down, and try again a couple of * times if this happens. XXX */ device_printf (sc->dev, "Unsupported card type detected\n"); } } static void cbb_removal(struct cbb_softc *sc) { if (sc->flags & CBB_16BIT_CARD) { if (sc->pccarddev != NULL) CARD_DETACH_CARD(sc->pccarddev); } else { if (sc->cbdev != NULL) CARD_DETACH_CARD(sc->cbdev); } cbb_destroy_res(sc); } /************************************************************************/ /* Interrupt Handler */ /************************************************************************/ static void cbb_intr(void *arg) { struct cbb_softc *sc = arg; uint32_t sockevent; struct cbb_intrhand *ih; /* * This ISR needs work XXX */ sockevent = cbb_get(sc, CBB_SOCKET_EVENT); if (sockevent) { /* ack the interrupt */ cbb_setb(sc, CBB_SOCKET_EVENT, sockevent); /* * If anything has happened to the socket, we assume that * the card is no longer OK, and we shouldn't call its * ISR. We set CARD_OK as soon as we've attached the * card. This helps in a noisy eject, which happens * all too often when users are ejecting their PC Cards. * * We use this method in preference to checking to see if * the card is still there because the check suffers from * a race condition in the bouncing case. Prior versions * of the pccard software used a similar trick and achieved * excellent results. */ if (sockevent & CBB_SOCKET_EVENT_CD) { lockmgr(&sc->lock, LK_EXCLUSIVE, NULL, curthread); sc->flags &= ~CBB_CARD_OK; lockmgr(&sc->lock, LK_RELEASE, NULL, curthread); wakeup(sc); } if (sockevent & CBB_SOCKET_EVENT_CSTS) { DPRINTF((" cstsevent occured: 0x%08x\n", cbb_get(sc, CBB_SOCKET_STATE))); } if (sockevent & CBB_SOCKET_EVENT_POWER) { DPRINTF((" pwrevent occured: 0x%08x\n", cbb_get(sc, CBB_SOCKET_STATE))); } /* Other bits? */ } if (sc->flags & CBB_CARD_OK) { STAILQ_FOREACH(ih, &sc->intr_handlers, entries) { (*ih->intr)(ih->arg); } } } /************************************************************************/ /* Generic Power functions */ /************************************************************************/ static int cbb_detect_voltage(device_t brdev) { struct cbb_softc *sc = device_get_softc(brdev); uint32_t psr; int vol = CARD_UKN_CARD; psr = cbb_get(sc, CBB_SOCKET_STATE); if (psr & CBB_SOCKET_STAT_5VCARD) vol |= CARD_5V_CARD; if (psr & CBB_SOCKET_STAT_3VCARD) vol |= CARD_3V_CARD; if (psr & CBB_SOCKET_STAT_XVCARD) vol |= CARD_XV_CARD; if (psr & CBB_SOCKET_STAT_YVCARD) vol |= CARD_YV_CARD; return (vol); } static int cbb_power(device_t brdev, int volts) { uint32_t status, sock_ctrl; struct cbb_softc *sc = device_get_softc(brdev); int timeout; uint32_t sockevent; DEVPRINTF((sc->dev, "cbb_power: %s and %s [%x]\n", (volts & CARD_VCCMASK) == CARD_VCC_UC ? "CARD_VCC_UC" : (volts & CARD_VCCMASK) == CARD_VCC_5V ? "CARD_VCC_5V" : (volts & CARD_VCCMASK) == CARD_VCC_3V ? "CARD_VCC_3V" : (volts & CARD_VCCMASK) == CARD_VCC_XV ? "CARD_VCC_XV" : (volts & CARD_VCCMASK) == CARD_VCC_YV ? "CARD_VCC_YV" : (volts & CARD_VCCMASK) == CARD_VCC_0V ? "CARD_VCC_0V" : "VCC-UNKNOWN", (volts & CARD_VPPMASK) == CARD_VPP_UC ? "CARD_VPP_UC" : (volts & CARD_VPPMASK) == CARD_VPP_12V ? "CARD_VPP_12V" : (volts & CARD_VPPMASK) == CARD_VPP_VCC ? "CARD_VPP_VCC" : (volts & CARD_VPPMASK) == CARD_VPP_0V ? "CARD_VPP_0V" : "VPP-UNKNOWN", volts)); status = cbb_get(sc, CBB_SOCKET_STATE); sock_ctrl = cbb_get(sc, CBB_SOCKET_CONTROL); switch (volts & CARD_VCCMASK) { case CARD_VCC_UC: break; case CARD_VCC_5V: if (CBB_SOCKET_STAT_5VCARD & status) { /* check 5 V card */ sock_ctrl &= ~CBB_SOCKET_CTRL_VCCMASK; sock_ctrl |= CBB_SOCKET_CTRL_VCC_5V; } else { device_printf(sc->dev, "BAD voltage request: no 5 V card\n"); } break; case CARD_VCC_3V: if (CBB_SOCKET_STAT_3VCARD & status) { sock_ctrl &= ~CBB_SOCKET_CTRL_VCCMASK; sock_ctrl |= CBB_SOCKET_CTRL_VCC_3V; } else { device_printf(sc->dev, "BAD voltage request: no 3.3 V card\n"); } break; case CARD_VCC_0V: sock_ctrl &= ~CBB_SOCKET_CTRL_VCCMASK; break; default: return (0); /* power NEVER changed */ break; } switch (volts & CARD_VPPMASK) { case CARD_VPP_UC: break; case CARD_VPP_0V: sock_ctrl &= ~CBB_SOCKET_CTRL_VPPMASK; break; case CARD_VPP_VCC: sock_ctrl &= ~CBB_SOCKET_CTRL_VPPMASK; sock_ctrl |= ((sock_ctrl >> 4) & 0x07); break; case CARD_VPP_12V: sock_ctrl &= ~CBB_SOCKET_CTRL_VPPMASK; sock_ctrl |= CBB_SOCKET_CTRL_VPP_12V; break; } if (cbb_get(sc, CBB_SOCKET_CONTROL) == sock_ctrl) return (1); /* no change necessary */ cbb_set(sc, CBB_SOCKET_CONTROL, sock_ctrl); status = cbb_get(sc, CBB_SOCKET_STATE); /* * XXX This busy wait is bogus. We should wait for a power * interrupt and then whine if the status is bad. If we're * worried about the card not coming up, then we should also * schedule a timeout which we can cacel in the power interrupt. */ timeout = 20; do { DELAY(20*1000); sockevent = cbb_get(sc, CBB_SOCKET_EVENT); } while (!(sockevent & CBB_SOCKET_EVENT_POWER) && --timeout > 0); /* reset event status */ /* XXX should only reset EVENT_POWER */ cbb_set(sc, CBB_SOCKET_EVENT, sockevent); if (timeout < 0) { printf ("VCC supply failed.\n"); return (0); } /* XXX * delay 400 ms: thgough the standard defines that the Vcc set-up time * is 20 ms, some PC-Card bridge requires longer duration. * XXX Note: We should check the stutus AFTER the delay to give time * for things to stabilize. */ DELAY(400*1000); if (status & CBB_SOCKET_STAT_BADVCC) { device_printf(sc->dev, "bad Vcc request. ctrl=0x%x, status=0x%x\n", sock_ctrl ,status); printf("cbb_power: %s and %s [%x]\n", (volts & CARD_VCCMASK) == CARD_VCC_UC ? "CARD_VCC_UC" : (volts & CARD_VCCMASK) == CARD_VCC_5V ? "CARD_VCC_5V" : (volts & CARD_VCCMASK) == CARD_VCC_3V ? "CARD_VCC_3V" : (volts & CARD_VCCMASK) == CARD_VCC_XV ? "CARD_VCC_XV" : (volts & CARD_VCCMASK) == CARD_VCC_YV ? "CARD_VCC_YV" : (volts & CARD_VCCMASK) == CARD_VCC_0V ? "CARD_VCC_0V" : "VCC-UNKNOWN", (volts & CARD_VPPMASK) == CARD_VPP_UC ? "CARD_VPP_UC" : (volts & CARD_VPPMASK) == CARD_VPP_12V ? "CARD_VPP_12V": (volts & CARD_VPPMASK) == CARD_VPP_VCC ? "CARD_VPP_VCC": (volts & CARD_VPPMASK) == CARD_VPP_0V ? "CARD_VPP_0V" : "VPP-UNKNOWN", volts); return (0); } return (1); /* power changed correctly */ } /* * detect the voltage for the card, and set it. Since the power * used is the square of the voltage, lower voltages is a big win * and what Windows does (and what Microsoft prefers). The MS paper * also talks about preferring the CIS entry as well. */ static int cbb_do_power(device_t brdev) { int voltage; /* Prefer lowest voltage supported */ voltage = cbb_detect_voltage(brdev); cbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V); if (voltage & CARD_YV_CARD) cbb_power(brdev, CARD_VCC_YV | CARD_VPP_VCC); else if (voltage & CARD_XV_CARD) cbb_power(brdev, CARD_VCC_XV | CARD_VPP_VCC); else if (voltage & CARD_3V_CARD) cbb_power(brdev, CARD_VCC_3V | CARD_VPP_VCC); else if (voltage & CARD_5V_CARD) cbb_power(brdev, CARD_VCC_5V | CARD_VPP_VCC); else { device_printf(brdev, "Unknown card voltage\n"); return (ENXIO); } return (0); } /************************************************************************/ /* CardBus power functions */ /************************************************************************/ static void cbb_cardbus_reset(device_t brdev) { struct cbb_softc *sc = device_get_softc(brdev); int delay_us; delay_us = sc->chipset == CB_RF5C47X ? 400*1000 : 20*1000; PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL, |CBBM_BRIDGECTRL_RESET, 2); DELAY(delay_us); /* If a card exists, unreset it! */ if ((cbb_get(sc, CBB_SOCKET_STATE) & CBB_SOCKET_STAT_CD) == 0) { PCI_MASK_CONFIG(brdev, CBBR_BRIDGECTRL, &~CBBM_BRIDGECTRL_RESET, 2); DELAY(delay_us); } } static int cbb_cardbus_power_enable_socket(device_t brdev, device_t child) { struct cbb_softc *sc = device_get_softc(brdev); int err; if ((cbb_get(sc, CBB_SOCKET_STATE) & CBB_SOCKET_STAT_CD) == CBB_SOCKET_STAT_CD) return (ENODEV); err = cbb_do_power(brdev); if (err) return (err); cbb_cardbus_reset(brdev); return (0); } static void cbb_cardbus_power_disable_socket(device_t brdev, device_t child) { cbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V); cbb_cardbus_reset(brdev); } /************************************************************************/ /* CardBus Resource */ /************************************************************************/ static int cbb_cardbus_io_open(device_t brdev, int win, uint32_t start, uint32_t end) { int basereg; int limitreg; if ((win < 0) || (win > 1)) { DEVPRINTF((brdev, "cbb_cardbus_io_open: window out of range %d\n", win)); return (EINVAL); } basereg = win * 8 + CBBR_IOBASE0; limitreg = win * 8 + CBBR_IOLIMIT0; pci_write_config(brdev, basereg, start, 4); pci_write_config(brdev, limitreg, end, 4); return (0); } static int cbb_cardbus_mem_open(device_t brdev, int win, uint32_t start, uint32_t end) { int basereg; int limitreg; if ((win < 0) || (win > 1)) { DEVPRINTF((brdev, "cbb_cardbus_mem_open: window out of range %d\n", win)); return (EINVAL); } basereg = win*8 + CBBR_MEMBASE0; limitreg = win*8 + CBBR_MEMLIMIT0; pci_write_config(brdev, basereg, start, 4); pci_write_config(brdev, limitreg, end, 4); return (0); } /* * XXX The following function belongs in the pci bus layer. */ static void cbb_cardbus_auto_open(struct cbb_softc *sc, int type) { uint32_t starts[2]; uint32_t ends[2]; struct cbb_reslist *rle; int align; int prefetchable[2]; uint32_t reg; starts[0] = starts[1] = 0xffffffff; ends[0] = ends[1] = 0; if (type == SYS_RES_MEMORY) align = CBB_MEMALIGN; else if (type == SYS_RES_IOPORT) align = CBB_IOALIGN; else align = 1; SLIST_FOREACH(rle, &sc->rl, link) { if (rle->type != type) ; else if (rle->res == NULL) { device_printf(sc->dev, "WARNING: Resource not reserved? " "(type=%d, addr=%lx)\n", rle->type, rman_get_start(rle->res)); } else if (!(rman_get_flags(rle->res) & RF_ACTIVE)) { /* XXX */ } else if (starts[0] == 0xffffffff) { starts[0] = rman_get_start(rle->res); ends[0] = rman_get_end(rle->res); prefetchable[0] = rman_get_flags(rle->res) & RF_PREFETCHABLE; } else if (rman_get_end(rle->res) > ends[0] && rman_get_start(rle->res) - ends[0] < CBB_AUTO_OPEN_SMALLHOLE && prefetchable[0] == (rman_get_flags(rle->res) & RF_PREFETCHABLE)) { ends[0] = rman_get_end(rle->res); } else if (rman_get_start(rle->res) < starts[0] && starts[0] - rman_get_end(rle->res) < CBB_AUTO_OPEN_SMALLHOLE && prefetchable[0] == (rman_get_flags(rle->res) & RF_PREFETCHABLE)) { starts[0] = rman_get_start(rle->res); } else if (starts[1] == 0xffffffff) { starts[1] = rman_get_start(rle->res); ends[1] = rman_get_end(rle->res); prefetchable[1] = rman_get_flags(rle->res) & RF_PREFETCHABLE; } else if (rman_get_end(rle->res) > ends[1] && rman_get_start(rle->res) - ends[1] < CBB_AUTO_OPEN_SMALLHOLE && prefetchable[1] == (rman_get_flags(rle->res) & RF_PREFETCHABLE)) { ends[1] = rman_get_end(rle->res); } else if (rman_get_start(rle->res) < starts[1] && starts[1] - rman_get_end(rle->res) < CBB_AUTO_OPEN_SMALLHOLE && prefetchable[1] == (rman_get_flags(rle->res) & RF_PREFETCHABLE)) { starts[1] = rman_get_start(rle->res); } else { uint32_t diffs[2]; int win; diffs[0] = diffs[1] = 0xffffffff; if (rman_get_start(rle->res) > ends[0]) diffs[0] = rman_get_start(rle->res) - ends[0]; else if (rman_get_end(rle->res) < starts[0]) diffs[0] = starts[0] - rman_get_end(rle->res); if (rman_get_start(rle->res) > ends[1]) diffs[1] = rman_get_start(rle->res) - ends[1]; else if (rman_get_end(rle->res) < starts[1]) diffs[1] = starts[1] - rman_get_end(rle->res); win = (diffs[0] <= diffs[1])?0:1; if (rman_get_start(rle->res) > ends[win]) ends[win] = rman_get_end(rle->res); else if (rman_get_end(rle->res) < starts[win]) starts[win] = rman_get_start(rle->res); if (!(rman_get_flags(rle->res) & RF_PREFETCHABLE)) prefetchable[win] = 0; } if (starts[0] != 0xffffffff) starts[0] -= starts[0] % align; if (starts[1] != 0xffffffff) starts[1] -= starts[1] % align; if (ends[0] % align != 0) ends[0] += align - ends[0]%align - 1; if (ends[1] % align != 0) ends[1] += align - ends[1]%align - 1; } if (type == SYS_RES_MEMORY) { cbb_cardbus_mem_open(sc->dev, 0, starts[0], ends[0]); cbb_cardbus_mem_open(sc->dev, 1, starts[1], ends[1]); reg = pci_read_config(sc->dev, CBBR_BRIDGECTRL, 2); reg &= ~(CBBM_BRIDGECTRL_PREFETCH_0| CBBM_BRIDGECTRL_PREFETCH_1); reg |= (prefetchable[0]?CBBM_BRIDGECTRL_PREFETCH_0:0)| (prefetchable[1]?CBBM_BRIDGECTRL_PREFETCH_1:0); pci_write_config(sc->dev, CBBR_BRIDGECTRL, reg, 2); } else if (type == SYS_RES_IOPORT) { cbb_cardbus_io_open(sc->dev, 0, starts[0], ends[0]); cbb_cardbus_io_open(sc->dev, 1, starts[1], ends[1]); } } static int cbb_cardbus_activate_resource(device_t brdev, device_t child, int type, int rid, struct resource *res) { int ret; ret = BUS_ACTIVATE_RESOURCE(device_get_parent(brdev), child, type, rid, res); if (ret != 0) return (ret); cbb_cardbus_auto_open(device_get_softc(brdev), type); return (0); } static int cbb_cardbus_deactivate_resource(device_t brdev, device_t child, int type, int rid, struct resource *res) { int ret; ret = BUS_DEACTIVATE_RESOURCE(device_get_parent(brdev), child, type, rid, res); if (ret != 0) return (ret); cbb_cardbus_auto_open(device_get_softc(brdev), type); return (0); } static struct resource * cbb_cardbus_alloc_resource(device_t brdev, device_t child, int type, int *rid, u_long start, u_long end, u_long count, uint flags) { struct cbb_softc *sc = device_get_softc(brdev); int tmp; struct resource *res; switch (type) { case SYS_RES_IRQ: tmp = rman_get_start(sc->irq_res); if (start > tmp || end < tmp || count != 1) { device_printf(child, "requested interrupt %ld-%ld," "count = %ld not supported by cbb\n", start, end, count); return (NULL); } start = end = tmp; break; case SYS_RES_IOPORT: if (start <= cbb_start_32_io) start = cbb_start_32_io; if (end < start) end = start; break; case SYS_RES_MEMORY: if (start <= cbb_start_mem) start = cbb_start_mem; if (end < start) end = start; break; } res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid, start, end, count, flags & ~RF_ACTIVE); if (res == NULL) { printf("cbb alloc res fail\n"); return (NULL); } cbb_insert_res(sc, res, type, *rid); if (flags & RF_ACTIVE) if (bus_activate_resource(child, type, *rid, res) != 0) { bus_release_resource(child, type, *rid, res); return (NULL); } return (res); } static int cbb_cardbus_release_resource(device_t brdev, device_t child, int type, int rid, struct resource *res) { struct cbb_softc *sc = device_get_softc(brdev); int error; if (rman_get_flags(res) & RF_ACTIVE) { error = bus_deactivate_resource(child, type, rid, res); if (error != 0) return (error); } cbb_remove_res(sc, res); return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child, type, rid, res)); } /************************************************************************/ /* PC Card Power Functions */ /************************************************************************/ static int cbb_pcic_power_enable_socket(device_t brdev, device_t child) { struct cbb_softc *sc = device_get_softc(brdev); int err; DPRINTF(("cbb_pcic_socket_enable:\n")); /* power down/up the socket to reset */ err = cbb_do_power(brdev); if (err) return (err); exca_reset(&sc->exca, child); return (0); } static void cbb_pcic_power_disable_socket(device_t brdev, device_t child) { struct cbb_softc *sc = device_get_softc(brdev); DPRINTF(("cbb_pcic_socket_disable\n")); /* reset signal asserting... */ exca_clrb(&sc->exca, EXCA_INTR, EXCA_INTR_RESET); DELAY(2*1000); /* power down the socket */ cbb_power(brdev, CARD_VCC_0V | CARD_VPP_0V); exca_clrb(&sc->exca, EXCA_PWRCTL, EXCA_PWRCTL_OE); /* wait 300ms until power fails (Tpf). */ DELAY(300 * 1000); } /************************************************************************/ /* POWER methods */ /************************************************************************/ static int cbb_power_enable_socket(device_t brdev, device_t child) { struct cbb_softc *sc = device_get_softc(brdev); if (sc->flags & CBB_16BIT_CARD) return (cbb_pcic_power_enable_socket(brdev, child)); else return (cbb_cardbus_power_enable_socket(brdev, child)); } static void cbb_power_disable_socket(device_t brdev, device_t child) { struct cbb_softc *sc = device_get_softc(brdev); if (sc->flags & CBB_16BIT_CARD) cbb_pcic_power_disable_socket(brdev, child); else cbb_cardbus_power_disable_socket(brdev, child); } static int cbb_pcic_activate_resource(device_t brdev, device_t child, int type, int rid, struct resource *res) { int err; struct cbb_softc *sc = device_get_softc(brdev); if (!(rman_get_flags(res) & RF_ACTIVE)) { /* not already activated */ switch (type) { case SYS_RES_IOPORT: err = exca_io_map(&sc->exca, 0, res); break; case SYS_RES_MEMORY: err = exca_mem_map(&sc->exca, 0, res); break; default: err = 0; break; } if (err) return (err); } return (BUS_ACTIVATE_RESOURCE(device_get_parent(brdev), child, type, rid, res)); } static int cbb_pcic_deactivate_resource(device_t brdev, device_t child, int type, int rid, struct resource *res) { struct cbb_softc *sc = device_get_softc(brdev); if (rman_get_flags(res) & RF_ACTIVE) { /* if activated */ switch (type) { case SYS_RES_IOPORT: if (exca_io_unmap_res(&sc->exca, res)) return (ENOENT); break; case SYS_RES_MEMORY: if (exca_mem_unmap_res(&sc->exca, res)) return (ENOENT); break; } } return (BUS_DEACTIVATE_RESOURCE(device_get_parent(brdev), child, type, rid, res)); } static struct resource * cbb_pcic_alloc_resource(device_t brdev, device_t child, int type, int *rid, u_long start, u_long end, u_long count, uint flags) { struct resource *res = NULL; struct cbb_softc *sc = device_get_softc(brdev); int tmp; switch (type) { case SYS_RES_MEMORY: if (start < cbb_start_mem) start = cbb_start_mem; if (end < start) end = start; flags = (flags & ~RF_ALIGNMENT_MASK) | rman_make_alignment_flags(CBB_MEMALIGN); break; case SYS_RES_IOPORT: if (start < cbb_start_16_io) start = cbb_start_16_io; if (end < start) end = start; break; case SYS_RES_IRQ: tmp = rman_get_start(sc->irq_res); if (start > tmp || end < tmp || count != 1) { device_printf(child, "requested interrupt %ld-%ld," "count = %ld not supported by cbb\n", start, end, count); return (NULL); } flags |= RF_SHAREABLE; start = end = rman_get_start(sc->irq_res); break; } res = BUS_ALLOC_RESOURCE(device_get_parent(brdev), child, type, rid, start, end, count, flags & ~RF_ACTIVE); if (res == NULL) return (NULL); cbb_insert_res(sc, res, type, *rid); if (flags & RF_ACTIVE) { if (bus_activate_resource(child, type, *rid, res) != 0) { bus_release_resource(child, type, *rid, res); return (NULL); } } return (res); } static int cbb_pcic_release_resource(device_t brdev, device_t child, int type, int rid, struct resource *res) { struct cbb_softc *sc = device_get_softc(brdev); int error; if (rman_get_flags(res) & RF_ACTIVE) { error = bus_deactivate_resource(child, type, rid, res); if (error != 0) return (error); } cbb_remove_res(sc, res); return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child, type, rid, res)); } /************************************************************************/ /* PC Card methods */ /************************************************************************/ static int cbb_pcic_set_res_flags(device_t brdev, device_t child, int type, int rid, uint32_t flags) { struct cbb_softc *sc = device_get_softc(brdev); struct resource *res; if (type != SYS_RES_MEMORY) return (EINVAL); res = cbb_find_res(sc, type, rid); if (res == NULL) { device_printf(brdev, "set_res_flags: specified rid not found\n"); return (ENOENT); } return (exca_mem_set_flags(&sc->exca, res, flags)); } static int cbb_pcic_set_memory_offset(device_t brdev, device_t child, int rid, uint32_t cardaddr, uint32_t *deltap) { struct cbb_softc *sc = device_get_softc(brdev); struct resource *res; res = cbb_find_res(sc, SYS_RES_MEMORY, rid); if (res == NULL) { device_printf(brdev, "set_memory_offset: specified rid not found\n"); return (ENOENT); } return (exca_mem_set_offset(&sc->exca, res, cardaddr, deltap)); } /************************************************************************/ /* BUS Methods */ /************************************************************************/ static int cbb_activate_resource(device_t brdev, device_t child, int type, int rid, struct resource *r) { struct cbb_softc *sc = device_get_softc(brdev); if (sc->flags & CBB_16BIT_CARD) return (cbb_pcic_activate_resource(brdev, child, type, rid, r)); else return (cbb_cardbus_activate_resource(brdev, child, type, rid, r)); } static int cbb_deactivate_resource(device_t brdev, device_t child, int type, int rid, struct resource *r) { struct cbb_softc *sc = device_get_softc(brdev); if (sc->flags & CBB_16BIT_CARD) return (cbb_pcic_deactivate_resource(brdev, child, type, rid, r)); else return (cbb_cardbus_deactivate_resource(brdev, child, type, rid, r)); } static struct resource * cbb_alloc_resource(device_t brdev, device_t child, int type, int *rid, u_long start, u_long end, u_long count, uint flags) { struct cbb_softc *sc = device_get_softc(brdev); if (sc->flags & CBB_16BIT_CARD) return (cbb_pcic_alloc_resource(brdev, child, type, rid, start, end, count, flags)); else return (cbb_cardbus_alloc_resource(brdev, child, type, rid, start, end, count, flags)); } static int cbb_release_resource(device_t brdev, device_t child, int type, int rid, struct resource *r) { struct cbb_softc *sc = device_get_softc(brdev); if (sc->flags & CBB_16BIT_CARD) return (cbb_pcic_release_resource(brdev, child, type, rid, r)); else return (cbb_cardbus_release_resource(brdev, child, type, rid, r)); } static int cbb_read_ivar(device_t brdev, device_t child, int which, uintptr_t *result) { struct cbb_softc *sc = device_get_softc(brdev); switch (which) { case PCIB_IVAR_BUS: *result = sc->secbus; return (0); } return (ENOENT); } static int cbb_write_ivar(device_t brdev, device_t child, int which, uintptr_t value) { struct cbb_softc *sc = device_get_softc(brdev); switch (which) { case PCIB_IVAR_BUS: sc->secbus = value; break; } return (ENOENT); } /************************************************************************/ /* PCI compat methods */ /************************************************************************/ static int cbb_maxslots(device_t brdev) { return (0); } static uint32_t cbb_read_config(device_t brdev, int b, int s, int f, int reg, int width) { /* * Pass through to the next ppb up the chain (i.e. our grandparent). */ return (PCIB_READ_CONFIG(device_get_parent(device_get_parent(brdev)), b, s, f, reg, width)); } static void cbb_write_config(device_t brdev, int b, int s, int f, int reg, uint32_t val, int width) { /* * Pass through to the next ppb up the chain (i.e. our grandparent). */ PCIB_WRITE_CONFIG(device_get_parent(device_get_parent(brdev)), b, s, f, reg, val, width); } static int cbb_suspend(device_t self) { int error = 0; struct cbb_softc *sc = device_get_softc(self); bus_teardown_intr(self, sc->irq_res, sc->intrhand); sc->flags &= ~CBB_CARD_OK; /* Card is bogus now */ error = bus_generic_suspend(self); return (error); } static int cbb_resume(device_t self) { int error = 0; struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(self); uint32_t tmp; /* * Some BIOSes will not save the BARs for the pci chips, so we * must do it ourselves. If the BAR is reset to 0 for an I/O * device, it will read back as 0x1, so no explicit test for * memory devices are needed. * * Note: The PCI bus code should do this automatically for us on * suspend/resume, but until it does, we have to cope. */ pci_write_config(self, CBBR_SOCKBASE, rman_get_start(sc->base_res), 4); DEVPRINTF((self, "PCI Memory allocated: %08lx\n", rman_get_start(sc->base_res))); cbb_chipinit(sc); /* reset interrupt -- Do we really need to do this? */ tmp = cbb_get(sc, CBB_SOCKET_EVENT); cbb_set(sc, CBB_SOCKET_EVENT, tmp); /* re-establish the interrupt. */ if (bus_setup_intr(self, sc->irq_res, INTR_TYPE_AV, cbb_intr, sc, &sc->intrhand)) { device_printf(self, "couldn't re-establish interrupt"); bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res); bus_release_resource(self, SYS_RES_MEMORY, CBBR_SOCKBASE, sc->base_res); sc->irq_res = NULL; sc->base_res = NULL; return (ENOMEM); } /* CSC Interrupt: Card detect interrupt on */ cbb_setb(sc, CBB_SOCKET_MASK, CBB_SOCKET_MASK_CD); /* Signal the thread to wakeup. */ wakeup(sc); error = bus_generic_resume(self); return (error); } static int cbb_child_present(device_t self) { struct cbb_softc *sc = (struct cbb_softc *)device_get_softc(self); uint32_t sockstate; sockstate = cbb_get(sc, CBB_SOCKET_STATE); return ((sockstate & CBB_SOCKET_STAT_CD) != 0 && (sc->flags & CBB_CARD_OK) != 0); } static device_method_t cbb_methods[] = { /* Device interface */ DEVMETHOD(device_probe, cbb_probe), DEVMETHOD(device_attach, cbb_attach), DEVMETHOD(device_detach, cbb_detach), DEVMETHOD(device_shutdown, cbb_shutdown), DEVMETHOD(device_suspend, cbb_suspend), DEVMETHOD(device_resume, cbb_resume), /* bus methods */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_read_ivar, cbb_read_ivar), DEVMETHOD(bus_write_ivar, cbb_write_ivar), DEVMETHOD(bus_alloc_resource, cbb_alloc_resource), DEVMETHOD(bus_release_resource, cbb_release_resource), DEVMETHOD(bus_activate_resource, cbb_activate_resource), DEVMETHOD(bus_deactivate_resource, cbb_deactivate_resource), DEVMETHOD(bus_driver_added, cbb_driver_added), DEVMETHOD(bus_child_detached, cbb_child_detached), DEVMETHOD(bus_setup_intr, cbb_setup_intr), DEVMETHOD(bus_teardown_intr, cbb_teardown_intr), DEVMETHOD(bus_child_present, cbb_child_present), /* 16-bit card interface */ DEVMETHOD(card_set_res_flags, cbb_pcic_set_res_flags), DEVMETHOD(card_set_memory_offset, cbb_pcic_set_memory_offset), /* power interface */ DEVMETHOD(power_enable_socket, cbb_power_enable_socket), DEVMETHOD(power_disable_socket, cbb_power_disable_socket), /* pcib compatibility interface */ DEVMETHOD(pcib_maxslots, cbb_maxslots), DEVMETHOD(pcib_read_config, cbb_read_config), DEVMETHOD(pcib_write_config, cbb_write_config), {0,0} }; static driver_t cbb_driver = { "cbb", cbb_methods, sizeof(struct cbb_softc) }; static devclass_t cbb_devclass; DRIVER_MODULE(cbb, pci, cbb_driver, cbb_devclass, 0, 0); MODULE_VERSION(cbb, 1); MODULE_DEPEND(cbb, exca, 1, 1, 1);