/* * Copyright (c) 2001 M. Warner Losh. All Rights Reserved. * Copyright (c) 1997 Ted Faber 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 immediately at the beginning of the file, without modification, * 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. Absolutely no warranty of function or purpose is made by the author * Ted Faber. * * 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. * * $FreeBSD$ */ #include #include #include #include #include #include #if __FreeBSD_version < 500000 #include #include #else #include #include #endif #include #include #include #include #include #include #include "card_if.h" #define PRVERB(x) do { \ if (bootverbose) { device_printf x; } \ } while (0) static int pcic_pci_get_memory(device_t dev); SYSCTL_DECL(_hw_pcic); static int pcic_ignore_function_1 = 0; TUNABLE_INT("hw.pcic.ignore_function_1", &pcic_ignore_function_1); SYSCTL_INT(_hw_pcic, OID_AUTO, ignore_function_1, CTLFLAG_RD, &pcic_ignore_function_1, 0, "When set, driver ignores pci function 1 of the bridge"); /* * The following should be a hint, so we can do it on a per device * instance, but this is convenient. Do not set this unless pci * routing doesn't work. It is purposely vague and undocumented * at the moment. */ static int pcic_intr_path = (int)pcic_iw_pci; TUNABLE_INT("hw.pcic.intr_path", &pcic_intr_path); SYSCTL_INT(_hw_pcic, OID_AUTO, intr_path, CTLFLAG_RD, &pcic_intr_path, 0, "Which path to send the interrupts over."); static int pcic_init_routing = 0; TUNABLE_INT("hw.pcic.init_routing", &pcic_init_routing); SYSCTL_INT(_hw_pcic, OID_AUTO, init_routing, CTLFLAG_RD, &pcic_init_routing, 0, "Force the interrupt routing to be initialized on those bridges where\n\ doing so will cause probelms. Often when no interrupts appear to be routed\n\ setting this tunable to 1 will resolve the problem. PCI Cards will almost\n\ always require this, while builtin bridges need it less often"); typedef void (*init_t)(device_t); static void pcic_pci_cardbus_init(device_t); static void pcic_pci_oz67xx_init(device_t); static void pcic_pci_oz68xx_init(device_t); static void pcic_pci_pd67xx_init(device_t); static void pcic_pci_pd683x_init(device_t); static void pcic_pci_ricoh_init(device_t); static void pcic_pci_ti_init(device_t); static void pcic_pci_topic_init(device_t); struct pcic_pci_table { u_int32_t devid; const char *descr; int type; u_int32_t flags; init_t init; } pcic_pci_devs[] = { { PCI_DEVICE_ID_PCIC_CLPD6729, "Cirrus Logic PD6729/6730 PC-Card Controller", PCIC_PD672X, PCIC_PD_POWER, pcic_pci_pd67xx_init }, { PCI_DEVICE_ID_PCIC_CLPD6832, "Cirrus Logic PD6832 PCI-CardBus Bridge", PCIC_PD672X, PCIC_PD_POWER, pcic_pci_pd683x_init }, { PCI_DEVICE_ID_PCIC_CLPD6833, "Cirrus Logic PD6833 PCI-CardBus Bridge", PCIC_PD672X, PCIC_PD_POWER, pcic_pci_pd683x_init }, { PCI_DEVICE_ID_PCIC_OZ6729, "O2micro OZ6729 PC-Card Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz67xx_init }, { PCI_DEVICE_ID_PCIC_OZ6730, "O2micro OZ6730 PC-Card Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz67xx_init }, { PCI_DEVICE_ID_PCIC_OZ6832, "O2micro 6832/6833 PCI-Cardbus Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz68xx_init }, { PCI_DEVICE_ID_PCIC_OZ6860, "O2micro 6860/6836 PCI-Cardbus Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz68xx_init }, { PCI_DEVICE_ID_PCIC_OZ6872, "O2micro 6812/6872 PCI-Cardbus Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_oz68xx_init }, { PCI_DEVICE_ID_RICOH_RL5C465, "Ricoh RL5C465 PCI-CardBus Bridge", PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init }, { PCI_DEVICE_ID_RICOH_RL5C475, "Ricoh RL5C475 PCI-CardBus Bridge", PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init }, { PCI_DEVICE_ID_RICOH_RL5C476, "Ricoh RL5C476 PCI-CardBus Bridge", PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init }, { PCI_DEVICE_ID_RICOH_RL5C477, "Ricoh RL5C477 PCI-CardBus Bridge", PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init }, { PCI_DEVICE_ID_RICOH_RL5C478, "Ricoh RL5C478 PCI-CardBus Bridge", PCIC_RF5C296, PCIC_RICOH_POWER, pcic_pci_ricoh_init }, { PCI_DEVICE_ID_PCIC_TI1031, "TI PCI-1031 PCI-PCMCIA Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1130, "TI PCI-1130 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1131, "TI PCI-1131 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1210, "TI PCI-1210 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1211, "TI PCI-1211 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1220, "TI PCI-1220 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1221, "TI PCI-1221 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1225, "TI PCI-1225 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1250, "TI PCI-1250 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1251, "TI PCI-1251 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1251B, "TI PCI-1251B PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1410, "TI PCI-1410 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1420, "TI PCI-1420 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1450, "TI PCI-1450 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI1451, "TI PCI-1451 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI4410, "TI PCI-4410 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI4450, "TI PCI-4450 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_PCIC_TI4451, "TI PCI-4451 PCI-CardBus Bridge", PCIC_I82365SL_DF, PCIC_DF_POWER, pcic_pci_ti_init }, { PCI_DEVICE_ID_TOSHIBA_TOPIC95, "Toshiba ToPIC95 PCI-CardBus Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_topic_init }, { PCI_DEVICE_ID_TOSHIBA_TOPIC97, "Toshiba ToPIC97 PCI-CardBus Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_topic_init }, { PCI_DEVICE_ID_TOSHIBA_TOPIC100, "Toshiba ToPIC100 PCI-CardBus Bridge", PCIC_I82365, PCIC_AB_POWER, pcic_pci_topic_init }, { 0, NULL, 0, 0, NULL } }; /* * Read a register from the PCIC. */ static unsigned char pcic_pci_getb2(struct pcic_slot *sp, int reg) { return (bus_space_read_1(sp->bst, sp->bsh, sp->offset + reg)); } /* * Write a register on the PCIC */ static void pcic_pci_putb2(struct pcic_slot *sp, int reg, unsigned char val) { bus_space_write_1(sp->bst, sp->bsh, sp->offset + reg, val); } /* * lookup inside the table */ static struct pcic_pci_table * pcic_pci_lookup(u_int32_t devid, struct pcic_pci_table *tbl) { while (tbl->devid) { if (tbl->devid == devid) return (tbl); tbl++; } return (NULL); } static void pcic_pci_oz67xx_init(device_t dev) { /* * This is almost certainly incomplete. */ device_printf(dev, "Warning: O2micro OZ67xx chips may not work\n"); pcic_pci_cardbus_init(dev); } static void pcic_pci_oz68xx_init(device_t dev) { /* * This is almost certainly incomplete. */ device_printf(dev, "Warning: O2micro OZ68xx chips may not work\n"); pcic_pci_cardbus_init(dev); } static void pcic_pci_pd67xx_init(device_t dev) { struct pcic_softc *sc = device_get_softc(dev); if (sc->csc_route == pcic_iw_pci || sc->func_route == pcic_iw_pci) device_printf(dev, "CL-PD67xx broken for PCI routing.\n"); } /* * Set up the CL-PD6832 */ static void pcic_pci_pd683x_init(device_t dev) { struct pcic_softc *sc = device_get_softc(dev); u_int32_t device_id = pci_get_devid(dev); u_long bcr; u_long cm1; /* * CLPD6832 management interrupt enable bit is bit 11 (MGMT_IRQ_ENA) * in bridge control register(offset 0x3d). * When this bit is turned on, card status change interrupt sets * on ISA IRQ interrupt. * Bit 7 controls the function interrupts and appears to be stanard. * * The CLPD6833 does things differently. It has bit 7, but not bit * 11. Bit 11's functionality appears to be in the "Configuration * Miscellaneous 1" register bit 1. */ bcr = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2); if (device_id == PCI_DEVICE_ID_PCIC_CLPD6832) { if (sc->csc_route == pcic_iw_pci) bcr &= ~CLPD6832_BCR_MGMT_IRQ_ENA; else bcr |= CLPD6832_BCR_MGMT_IRQ_ENA; } if (sc->func_route == pcic_iw_pci) bcr &= ~CB_BCR_INT_EXCA; else bcr |= CB_BCR_INT_EXCA; pci_write_config(dev, CB_PCI_BRIDGE_CTRL, bcr, 2); if (device_id == PCI_DEVICE_ID_PCIC_CLPD6833) { cm1 = pci_read_config(dev, CLPD6833_CFG_MISC_1, 4); if (sc->csc_route == pcic_iw_pci) cm1 &= ~CLPD6833_CM1_MGMT_EXCA_ENA; else cm1 |= CLPD6833_CM1_MGMT_EXCA_ENA; pci_write_config(dev, CLPD6833_CFG_MISC_1, cm1, 4); } pcic_pci_cardbus_init(dev); } static void pcic_pci_ricoh_init(device_t dev) { u_int16_t brgcntl; u_int32_t device_id = pci_get_devid(dev); switch (device_id) { case PCI_DEVICE_ID_RICOH_RL5C465: case PCI_DEVICE_ID_RICOH_RL5C466: /* * Ricoh chips have a legacy bridge enable different than most * Code cribbed from NEWBUS's bridge code since I can't find a * datasheet for them that has register definitions. */ brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2); brgcntl &= ~(CB_BCR_RL_3E2_EN | CB_BCR_RL_3E0_EN); pci_write_config(dev, CB_PCI_BRIDGE_CTRL, brgcntl, 2); break; } pcic_pci_cardbus_init(dev); } /* * TI PCI-CardBus Host Adapter specific function code. * This function is separated from pcic_pci_attach(). * Takeshi Shibagaki(shiba@jp.freebsd.org). */ static void pcic_pci_ti_init(device_t dev) { u_int32_t syscntl, diagctl, devcntl, cardcntl; u_int32_t device_id = pci_get_devid(dev); struct pcic_softc *sc = device_get_softc(dev); int ti113x = (device_id == PCI_DEVICE_ID_PCIC_TI1031) || (device_id == PCI_DEVICE_ID_PCIC_TI1130) || (device_id == PCI_DEVICE_ID_PCIC_TI1131); syscntl = pci_read_config(dev, TI113X_PCI_SYSTEM_CONTROL, 4); devcntl = pci_read_config(dev, TI113X_PCI_DEVICE_CONTROL, 1); cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1); if (ti113x) { device_printf(dev, "TI113X PCI Config Reg: "); /* * The TI-1130 (and 1030 and 1131) have a different * interrupt routing control than the newer cards. * assume we're not routing PCI, but enable as necessary * when we find someone uses PCI interrupts. In order to * get any pci interrupts, PCI_IRQ_ENA (bit 5) must * be set. If either PCI_IREQ (bit 4) or PCI_CSC (bit 3) * are set, then set bit 5 at the same time, since setting * them enables the PCI interrupt routing. */ cardcntl &= ~TI113X_CARDCNTL_PCI_IRQ_ENA; if (sc->func_route == pcic_iw_pci) cardcntl |= TI113X_CARDCNTL_PCI_IRQ_ENA | TI113X_CARDCNTL_PCI_IREQ; else cardcntl &= ~TI113X_CARDCNTL_PCI_IREQ; if (sc->csc_route == pcic_iw_pci) cardcntl |= TI113X_CARDCNTL_PCI_IRQ_ENA | TI113X_CARDCNTL_PCI_CSC; else cardcntl &= ~TI113X_CARDCNTL_PCI_CSC; pci_write_config(dev, TI113X_PCI_CARD_CONTROL, cardcntl, 1); cardcntl = pci_read_config(dev, TI113X_PCI_CARD_CONTROL, 1); if (syscntl & TI113X_SYSCNTL_CLKRUN_ENA) { if (syscntl & TI113X_SYSCNTL_CLKRUN_SEL) printf("[clkrun irq 12]"); else printf("[clkrun irq 10]"); } } else { device_printf(dev, "TI12XX PCI Config Reg: "); /* * Turn on async CSC interrupts. This appears to * be the default, but the old, pre pci-aware, code * did this and it appears PAO does as well. */ diagctl = pci_read_config(dev, TI12XX_PCI_DIAGNOSTIC, 1); diagctl |= TI12XX_DIAG_CSC_INTR; pci_write_config(dev, TI12XX_PCI_DIAGNOSTIC, diagctl, 1); /* * Turn off Zoom Video. Some cards have this enabled, * some do not but it causes problems when enabled. This * register doesn't exist on the 1130 (and likely the 1131, * but without a datasheet it is impossible to know). * Some 12xx chips may not have it, but setting it is * believed to be harmless. */ pci_write_config(dev, TI12XX_PCI_MULTIMEDIA_CONTROL, 0, 4); } /* * Default card control register setting is PCI interrupt. * The method of this code switches PCI INT and ISA IRQ by bit * 7 of Bridge Control Register(Offset:0x3e,0x13e). * Takeshi Shibagaki(shiba@jp.freebsd.org) */ if (sc->func_route == pcic_iw_pci) { if (pcic_init_routing) { devcntl &= ~TI113X_DEVCNTL_INTR_MASK; pci_write_config(dev, TI113X_PCI_DEVICE_CONTROL, devcntl, 1); devcntl = pci_read_config(dev, TI113X_PCI_DEVICE_CONTROL, 1); syscntl |= TI113X_SYSCNTL_INTRTIE; } syscntl &= ~TI113X_SYSCNTL_SMIENB; pci_write_config(dev, TI113X_PCI_SYSTEM_CONTROL, syscntl, 1); } if (cardcntl & TI113X_CARDCNTL_RING_ENA) printf("[ring enable]"); if (cardcntl & TI113X_CARDCNTL_SPKR_ENA) printf("[speaker enable]"); if (syscntl & TI113X_SYSCNTL_PWRSAVINGS) printf("[pwr save]"); switch(devcntl & TI113X_DEVCNTL_INTR_MASK){ case TI113X_DEVCNTL_INTR_ISA : printf("[CSC parallel isa irq]"); break; case TI113X_DEVCNTL_INTR_SERIAL : printf("[CSC serial isa irq]"); break; case TI113X_DEVCNTL_INTR_NONE : printf("[pci only]"); break; case TI12XX_DEVCNTL_INTR_ALLSERIAL : printf("[FUNC pci int + CSC serial isa irq]"); break; } printf("\n"); pcic_pci_cardbus_init(dev); } static void pcic_pci_topic_init(device_t dev) { /* * This is almost certainly incomplete. */ device_printf(dev, "Warning: Toshiba ToPIC chips may not work\n"); pcic_pci_cardbus_init(dev); } static void pcic_pci_cardbus_init(device_t dev) { u_int16_t brgcntl; int unit; struct pcic_softc *sc = device_get_softc(dev); unit = device_get_unit(dev); if (sc->func_route == pcic_iw_pci) { /* Use INTA for routing function interrupts via pci bus */ brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2); brgcntl &= ~CB_BCR_INT_EXCA; brgcntl |= CB_BCR_WRITE_POST_EN | CB_BCR_MASTER_ABORT; pci_write_config(dev, CB_PCI_BRIDGE_CTRL, brgcntl, 2); } else { /* Output ISA IRQ indicated in ExCA register(0x03). */ brgcntl = pci_read_config(dev, CB_PCI_BRIDGE_CTRL, 2); brgcntl |= CB_BCR_INT_EXCA; pci_write_config(dev, CB_PCI_BRIDGE_CTRL, brgcntl, 2); } /* Turn off legacy address */ pci_write_config(dev, CB_PCI_LEGACY16_IOADDR, 0, 2); /* * Write zeros into the remaining BARs. This seems to turn off * the pci configuration of these things and make the cardbus * bridge use the values for memory programmed into the pcic * registers. */ pci_write_config(dev, CB_PCI_MEMBASE0, 0, 4); pci_write_config(dev, CB_PCI_MEMLIMIT0, 0, 4); pci_write_config(dev, CB_PCI_MEMBASE1, 0, 4); pci_write_config(dev, CB_PCI_MEMLIMIT1, 0, 4); pci_write_config(dev, CB_PCI_IOBASE0, 0, 4); pci_write_config(dev, CB_PCI_IOLIMIT0, 0, 4); pci_write_config(dev, CB_PCI_IOBASE1, 0, 4); pci_write_config(dev, CB_PCI_IOLIMIT1, 0, 4); return; } static const char * pcic_pci_cardtype(u_int32_t stat) { if (stat & CB_SS_NOTCARD) return ("Cardtype unrecognized by bridge"); if ((stat & (CB_SS_16BIT | CB_SS_CB)) == (CB_SS_16BIT | CB_SS_CB)) return ("16-bit and 32-bit (can't happen)"); if (stat & CB_SS_16BIT) return ("16-bit pccard"); if (stat & CB_SS_CB) return ("32-bit cardbus"); return ("none (can't happen)"); } /* * Card insertion and removal code. The insertion events need to be * debounced so that the noisy insertion/removal events don't result * in the hardware being initialized many times, only to be torn down * as well. This may also cause races with pccardd. Instead, we wait * for the insertion signal to be stable for 0.5 seconds before we declare * it to be a real insertion event. Removal is done right away. * * Note: We only handle the card detect change events. We don't handle * power events and status change events. */ static void pcic_cd_insert(void *arg) { struct pcic_softc *sc = (struct pcic_softc *) arg; struct pcic_slot *sp = &sc->slots[0]; u_int32_t stat; sc->cd_pending = 0; stat = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE); /* Just return if the interrupt handler missed a remove transition. */ if ((stat & CB_SS_CD) != 0) return; sc->cd_present = 1; if ((stat & CB_SS_16BIT) == 0) device_printf(sp->sc->dev, "Card type %s is unsupported\n", pcic_pci_cardtype(stat)); else pccard_event(sp->slt, card_inserted); } static void pcic_pci_intr(void *arg) { struct pcic_softc *sc = (struct pcic_softc *) arg; struct pcic_slot *sp = &sc->slots[0]; u_int32_t event; u_int32_t stat; int present; event = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_EVENT); if (event != 0) { stat = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE); if (bootverbose) device_printf(sc->dev, "Event mask 0x%x stat 0x%x\n", event, stat); present = (stat & CB_SS_CD) == 0; if (present != sc->cd_present) { if (sc->cd_pending) { untimeout(pcic_cd_insert, arg, sc->cd_ch); sc->cd_pending = 0; } /* Delay insert events to debounce noisy signals. */ if (present) { sc->cd_ch = timeout(pcic_cd_insert, arg, hz/2); sc->cd_pending = 1; } else { sc->cd_present = 0; sp->intr = NULL; pccard_event(sp->slt, card_removed); } } /* Ack the interrupt */ bus_space_write_4(sp->bst, sp->bsh, 0, event); } /* * Some TI chips also require us to read the old ExCA register for * card status change when we route CSC via PCI! So, we go ahead * and read it to clear the bits. Maybe we should check the status * ala the ISA interrupt handler, but those changes should be caught * in the CD change. */ sp->getb(sp, PCIC_STAT_CHG); } /* * Return the ID string for the controller if the vendor/product id * matches, NULL otherwise. */ static int pcic_pci_probe(device_t dev) { u_int8_t subclass; u_int8_t progif; const char *desc; u_int32_t device_id; struct pcic_pci_table *itm; struct resource *res; int rid; device_id = pci_get_devid(dev); desc = NULL; itm = pcic_pci_lookup(device_id, &pcic_pci_devs[0]); if (pcic_ignore_function_1 && pci_get_function(dev) == 1) { if (itm != NULL) PRVERB((dev, "Ignoring function 1\n")); return (ENXIO); } if (itm != NULL) desc = itm->descr; if (desc == NULL && pci_get_class(dev) == PCIC_BRIDGE) { subclass = pci_get_subclass(dev); progif = pci_get_progif(dev); if (subclass == PCIS_BRIDGE_PCMCIA && progif == 0) desc = "Generic PCI-PCMCIA Bridge"; if (subclass == PCIS_BRIDGE_CARDBUS && progif == 0) desc = "YENTA PCI-CARDBUS Bridge"; if (bootverbose && desc) printf("Found unknown %s devid 0x%x\n", desc, device_id); } if (desc == NULL) return (ENXIO); device_set_desc(dev, desc); /* * Take us out of power down mode, if necessary. It also * appears that even reading the power register is enough on * some systems to cause correct behavior. */ if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { /* Reset the power state. */ device_printf(dev, "chip is in D%d power mode " "-- setting to D0\n", pci_get_powerstate(dev)); pci_set_powerstate(dev, PCI_POWERSTATE_D0); } /* * Allocated/deallocate interrupt. This forces the PCI BIOS or * other MD method to route the interrupts to this card. * This so we get the interrupt number in the probe message. * We only need to route interrupts when we're doing pci * parallel interrupt routing. */ if (pcic_intr_path == pcic_iw_pci) { rid = 0; res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE); if (res) bus_release_resource(dev, SYS_RES_IRQ, rid, res); } return (0); } static void pcic_pci_shutdown(device_t dev) { struct pcic_softc *sc; struct pcic_slot *sp; sc = (struct pcic_softc *) device_get_softc(dev); sp = &sc->slots[0]; /* * Turn off the power to the slot in an attempt to * keep the system from hanging on reboot. We also turn off * card interrupts in an attempt to control interrupt storms. * on some (all?) this has the effect of also turning off * card status change interrupts. A side effect of writing 0 * to INT_GEN is that the card is placed into "reset" mode * where nothing happens until it is taken out of "reset" * mode. */ sp->putb(sp, PCIC_INT_GEN, 0); sp->putb(sp, PCIC_POWER, 0); /* * Writing to INT_GEN can cause an interrupt, so we blindly * ack all possible interrupts here. Reading the stat change * shouldn't be necessary, but some TI chipsets need it in the * normal course of operations, so we do it here too. We can't * lose any interrupts after this point, so go ahead and ack * everything. The bits in INT_GEN clear upon reading them. */ bus_space_write_4(sp->bst, sp->bsh, 0, 0xffffffff); sp->getb(sp, PCIC_STAT_CHG); } /* * General PCI based card dispatch routine. Right now * it only understands the Ricoh, CL-PD6832 and TI parts. It does * try to do generic things with other parts. */ static int pcic_pci_attach(device_t dev) { u_int32_t device_id = pci_get_devid(dev); u_long command; struct pcic_slot *sp; struct pcic_softc *sc; u_int32_t sockbase; u_int32_t stat; struct pcic_pci_table *itm; int rid; struct resource *r = NULL; int error; u_long irq = 0; driver_intr_t *intr = NULL; /* * In sys/pci/pcireg.h, PCIR_COMMAND must be separated * PCI_COMMAND_REG(0x04) and PCI_STATUS_REG(0x06). * Takeshi Shibagaki(shiba@jp.freebsd.org). */ command = pci_read_config(dev, PCIR_COMMAND, 4); command |= PCIM_CMD_PORTEN | PCIM_CMD_MEMEN; pci_write_config(dev, PCIR_COMMAND, command, 4); sc = (struct pcic_softc *) device_get_softc(dev); sp = &sc->slots[0]; sp->sc = sc; sockbase = pci_read_config(dev, 0x10, 4); if (sockbase & 0x1) { sc->iorid = CB_PCI_SOCKET_BASE; sc->iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->iorid, 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); if (sc->iores == NULL) return (ENOMEM); sp->getb = pcic_getb_io; sp->putb = pcic_putb_io; sp->bst = rman_get_bustag(sc->iores); sp->bsh = rman_get_bushandle(sc->iores); sp->offset = pci_get_function(dev) * PCIC_SLOT_SIZE; sp->controller = PCIC_PD672X; sp->revision = 0; sc->flags = PCIC_PD_POWER; itm = pcic_pci_lookup(device_id, &pcic_pci_devs[0]); } else { sc->memrid = CB_PCI_SOCKET_BASE; sc->memres = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->memrid, 0, ~0, 1, RF_ACTIVE); if (sc->memres == NULL && pcic_pci_get_memory(dev) != 0) return (ENOMEM); sp->getb = pcic_pci_getb2; sp->putb = pcic_pci_putb2; sp->offset = CB_EXCA_OFFSET; sp->bst = rman_get_bustag(sc->memres); sp->bsh = rman_get_bushandle(sc->memres); itm = pcic_pci_lookup(device_id, &pcic_pci_devs[0]); if (itm != NULL) { sp->controller = itm->type; sp->revision = 0; sc->flags = itm->flags; } else { /* By default, assume we're a D step compatible */ sp->controller = PCIC_I82365SL_DF; sp->revision = 0; sc->flags = PCIC_DF_POWER; } } sc->dev = dev; sc->csc_route = pcic_intr_path; sc->func_route = pcic_intr_path; sp->slt = (struct slot *) 1; if (sc->csc_route == pcic_iw_pci) { rid = 0; r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); if (r == NULL) { sc->csc_route = pcic_iw_isa; sc->func_route = pcic_iw_isa; device_printf(dev, "No PCI interrupt routed, trying ISA.\n"); } else { intr = pcic_pci_intr; irq = rman_get_start(r); } } if (sc->csc_route == pcic_iw_isa) { rid = 0; irq = pcic_override_irq; if (irq != 0) { r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq, irq, 1, RF_ACTIVE); if (r == NULL) { device_printf(dev, "Can't route ISA CSC interrupt.\n"); pcic_dealloc(dev); return (ENXIO); } intr = pcic_isa_intr; } else { sc->slot_poll = pcic_timeout; sc->timeout_ch = timeout(sc->slot_poll, sc, hz/2); device_printf(dev, "Polling mode\n"); intr = NULL; } } /* * Initialize AFTER we figure out what kind of interrupt we're * going to be using, if any. */ if (itm && itm->init) itm->init(dev); else pcic_pci_cardbus_init(dev); /* * Now install the interrupt handler, if necessary. */ sc->irqrid = rid; sc->irqres = r; sc->irq = irq; if (intr) { error = bus_setup_intr(dev, r, INTR_TYPE_AV, intr, sc, &sc->ih); if (error) { pcic_dealloc(dev); return (error); } } stat = bus_space_read_4(sp->bst, sp->bsh, CB_SOCKET_STATE); sc->cd_present = (stat & CB_SS_CD) == 0; return (pcic_attach(dev)); } static int pcic_pci_detach(device_t dev) { return (EBUSY); /* Can't detach this device */ } /* * The PCI bus should do this for us. However, it doesn't quite yet, so * we cope by doing it ourselves. If it ever does, this code can go quietly * into that good night. */ static int pcic_pci_get_memory(device_t dev) { struct pcic_softc *sc; u_int32_t sockbase; sc = (struct pcic_softc *) device_get_softc(dev); sockbase = pci_read_config(dev, sc->memrid, 4); if (sockbase >= 0x100000 && sockbase < 0xfffffff0) { device_printf(dev, "Could not map register memory\n"); return (ENOMEM); } pci_write_config(dev, sc->memrid, 0xffffffff, 4); sockbase = pci_read_config(dev, sc->memrid, 4); sockbase = (sockbase & 0xfffffff0) & -(sockbase & 0xfffffff0); #define CARDBUS_SYS_RES_MEMORY_START 0x44000000 #define CARDBUS_SYS_RES_MEMORY_END 0xFFFFFFFF sc->memres = bus_generic_alloc_resource(device_get_parent(dev), dev, SYS_RES_MEMORY, &sc->memrid, CARDBUS_SYS_RES_MEMORY_START, CARDBUS_SYS_RES_MEMORY_END, sockbase, RF_ACTIVE | rman_make_alignment_flags(sockbase)); if (sc->memres == NULL) { device_printf(dev, "Could not grab register memory\n"); return (ENOMEM); } sockbase = rman_get_start(sc->memres); pci_write_config(dev, sc->memrid, sockbase, 4); device_printf(dev, "PCI Memory allocated: 0x%08x\n", sockbase); return (0); } static device_method_t pcic_pci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, pcic_pci_probe), DEVMETHOD(device_attach, pcic_pci_attach), DEVMETHOD(device_detach, pcic_pci_detach), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(device_shutdown, pcic_pci_shutdown), /* Bus interface */ DEVMETHOD(bus_print_child, bus_generic_print_child), DEVMETHOD(bus_alloc_resource, pcic_alloc_resource), DEVMETHOD(bus_release_resource, bus_generic_release_resource), DEVMETHOD(bus_activate_resource, pcic_activate_resource), DEVMETHOD(bus_deactivate_resource, pcic_deactivate_resource), DEVMETHOD(bus_setup_intr, pcic_setup_intr), DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), /* Card interface */ DEVMETHOD(card_set_res_flags, pcic_set_res_flags), DEVMETHOD(card_get_res_flags, pcic_get_res_flags), DEVMETHOD(card_set_memory_offset, pcic_set_memory_offset), DEVMETHOD(card_get_memory_offset, pcic_get_memory_offset), {0, 0} }; static driver_t pcic_pci_driver = { "pcic", pcic_pci_methods, sizeof(struct pcic_softc) }; DRIVER_MODULE(pcic, pci, pcic_pci_driver, pcic_devclass, 0, 0);