/* $NetBSD: pccbb.c,v 1.204 2012/01/30 19:41:22 drochner 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: pccbb.c,v 1.204 2012/01/30 19:41:22 drochner Exp $"); /* #define CBB_DEBUG #define SHOW_REGS */ #include #include #include #include #include #include /* for bootverbose */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __NetBSD_Version__ struct cfdriver cbb_cd = { NULL, "cbb", DV_DULL }; #endif #ifdef CBB_DEBUG #define DPRINTF(x) printf x #define STATIC #else #define DPRINTF(x) #define STATIC static #endif int pccbb_burstup = 1; /* * delay_ms() is wait in milliseconds. It should be used instead * of delay() if you want to wait more than 1 ms. */ static inline void delay_ms(int millis, struct pccbb_softc *sc) { if (cold) delay(millis * 1000); else kpause("pccbb", false, mstohz(millis), NULL); } int pcicbbmatch(device_t, cfdata_t, void *); void pccbbattach(device_t, device_t, void *); void pccbbchilddet(device_t, device_t); int pccbbdetach(device_t, int); int pccbbintr(void *); static void pci113x_insert(void *); static int pccbbintr_function(struct pccbb_softc *); static int pccbb_detect_card(struct pccbb_softc *); static void pccbb_pcmcia_write(struct pccbb_softc *, int, u_int8_t); static u_int8_t pccbb_pcmcia_read(struct pccbb_softc *, int); #define Pcic_read(sc, reg) pccbb_pcmcia_read((sc), (reg)) #define Pcic_write(sc, reg, val) pccbb_pcmcia_write((sc), (reg), (val)) STATIC int cb_reset(struct pccbb_softc *); STATIC int cb_detect_voltage(struct pccbb_softc *); STATIC int cbbprint(void *, const char *); static int cb_chipset(u_int32_t, int *); STATIC void pccbb_pcmcia_attach_setup(struct pccbb_softc *, struct pcmciabus_attach_args *); STATIC int pccbb_ctrl(cardbus_chipset_tag_t, int); STATIC int pccbb_power(struct pccbb_softc *sc, int); STATIC int pccbb_power_ct(cardbus_chipset_tag_t, int); STATIC int pccbb_cardenable(struct pccbb_softc * sc, int function); static void *pccbb_intr_establish(struct pccbb_softc *, int level, int (*ih) (void *), void *sc); static void pccbb_intr_disestablish(struct pccbb_softc *, void *ih); static void *pccbb_cb_intr_establish(cardbus_chipset_tag_t, int level, int (*ih) (void *), void *sc); static void pccbb_cb_intr_disestablish(cardbus_chipset_tag_t ct, void *ih); static pcitag_t pccbb_make_tag(cardbus_chipset_tag_t, int, int); static pcireg_t pccbb_conf_read(cardbus_chipset_tag_t, pcitag_t, int); static void pccbb_conf_write(cardbus_chipset_tag_t, pcitag_t, int, pcireg_t); static void pccbb_chipinit(struct pccbb_softc *); static void pccbb_intrinit(struct pccbb_softc *); STATIC int pccbb_pcmcia_mem_alloc(pcmcia_chipset_handle_t, bus_size_t, struct pcmcia_mem_handle *); STATIC void pccbb_pcmcia_mem_free(pcmcia_chipset_handle_t, struct pcmcia_mem_handle *); STATIC int pccbb_pcmcia_mem_map(pcmcia_chipset_handle_t, int, bus_addr_t, bus_size_t, struct pcmcia_mem_handle *, bus_size_t *, int *); STATIC void pccbb_pcmcia_mem_unmap(pcmcia_chipset_handle_t, int); STATIC int pccbb_pcmcia_io_alloc(pcmcia_chipset_handle_t, bus_addr_t, bus_size_t, bus_size_t, struct pcmcia_io_handle *); STATIC void pccbb_pcmcia_io_free(pcmcia_chipset_handle_t, struct pcmcia_io_handle *); STATIC int pccbb_pcmcia_io_map(pcmcia_chipset_handle_t, int, bus_addr_t, bus_size_t, struct pcmcia_io_handle *, int *); STATIC void pccbb_pcmcia_io_unmap(pcmcia_chipset_handle_t, int); STATIC void *pccbb_pcmcia_intr_establish(pcmcia_chipset_handle_t, struct pcmcia_function *, int, int (*)(void *), void *); STATIC void pccbb_pcmcia_intr_disestablish(pcmcia_chipset_handle_t, void *); STATIC void pccbb_pcmcia_socket_enable(pcmcia_chipset_handle_t); STATIC void pccbb_pcmcia_socket_disable(pcmcia_chipset_handle_t); STATIC void pccbb_pcmcia_socket_settype(pcmcia_chipset_handle_t, int); STATIC int pccbb_pcmcia_card_detect(pcmcia_chipset_handle_t pch); static int pccbb_pcmcia_wait_ready(struct pccbb_softc *); static void pccbb_pcmcia_delay(struct pccbb_softc *, int, const char *); static void pccbb_pcmcia_do_io_map(struct pccbb_softc *, int); static void pccbb_pcmcia_do_mem_map(struct pccbb_softc *, int); /* bus-space allocation and deallocation functions */ static int pccbb_rbus_cb_space_alloc(cardbus_chipset_tag_t, rbus_tag_t, bus_addr_t addr, bus_size_t size, bus_addr_t mask, bus_size_t align, int flags, bus_addr_t * addrp, bus_space_handle_t * bshp); static int pccbb_rbus_cb_space_free(cardbus_chipset_tag_t, rbus_tag_t, bus_space_handle_t, bus_size_t); static int pccbb_open_win(struct pccbb_softc *, bus_space_tag_t, bus_addr_t, bus_size_t, bus_space_handle_t, int flags); static int pccbb_close_win(struct pccbb_softc *, bus_space_tag_t, bus_space_handle_t, bus_size_t); static int pccbb_winlist_insert(struct pccbb_win_chain_head *, bus_addr_t, bus_size_t, bus_space_handle_t, int); static int pccbb_winlist_delete(struct pccbb_win_chain_head *, bus_space_handle_t, bus_size_t); static void pccbb_winset(bus_addr_t align, struct pccbb_softc *, bus_space_tag_t); void pccbb_winlist_show(struct pccbb_win_chain *); /* for config_defer */ static void pccbb_pci_callback(device_t); static bool pccbb_suspend(device_t, const pmf_qual_t *); static bool pccbb_resume(device_t, const pmf_qual_t *); #if defined SHOW_REGS static void cb_show_regs(pci_chipset_tag_t pc, pcitag_t tag, bus_space_tag_t memt, bus_space_handle_t memh); #endif CFATTACH_DECL3_NEW(cbb_pci, sizeof(struct pccbb_softc), pcicbbmatch, pccbbattach, pccbbdetach, NULL, NULL, pccbbchilddet, DVF_DETACH_SHUTDOWN); static const struct pcmcia_chip_functions pccbb_pcmcia_funcs = { pccbb_pcmcia_mem_alloc, pccbb_pcmcia_mem_free, pccbb_pcmcia_mem_map, pccbb_pcmcia_mem_unmap, pccbb_pcmcia_io_alloc, pccbb_pcmcia_io_free, pccbb_pcmcia_io_map, pccbb_pcmcia_io_unmap, pccbb_pcmcia_intr_establish, pccbb_pcmcia_intr_disestablish, pccbb_pcmcia_socket_enable, pccbb_pcmcia_socket_disable, pccbb_pcmcia_socket_settype, pccbb_pcmcia_card_detect }; static const struct cardbus_functions pccbb_funcs = { pccbb_rbus_cb_space_alloc, pccbb_rbus_cb_space_free, pccbb_cb_intr_establish, pccbb_cb_intr_disestablish, pccbb_ctrl, pccbb_power_ct, pccbb_make_tag, pccbb_conf_read, pccbb_conf_write, }; int pcicbbmatch(device_t parent, cfdata_t match, void *aux) { struct pci_attach_args *pa = (struct pci_attach_args *)aux; if (PCI_CLASS(pa->pa_class) == PCI_CLASS_BRIDGE && PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_BRIDGE_CARDBUS && PCI_INTERFACE(pa->pa_class) == 0) { return 1; } return 0; } #define MAKEID(vendor, prod) (((vendor) << PCI_VENDOR_SHIFT) \ | ((prod) << PCI_PRODUCT_SHIFT)) const struct yenta_chipinfo { pcireg_t yc_id; /* vendor tag | product tag */ int yc_chiptype; int yc_flags; } yc_chipsets[] = { /* Texas Instruments chips */ { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1130), CB_TI113X, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1131), CB_TI113X, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1250), CB_TI125X, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1220), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1221), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1225), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1251), CB_TI125X, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1251B), CB_TI125X, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1211), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1410), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1420), CB_TI1420, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1450), CB_TI125X, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1451), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1510), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI1520), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI4410YENTA), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI4520YENTA), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TI, PCI_PRODUCT_TI_PCI7420YENTA), CB_TI12XX, PCCBB_PCMCIA_IO_RELOC | PCCBB_PCMCIA_MEM_32}, /* Ricoh chips */ { MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C475), CB_RX5C47X, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_RL5C476), CB_RX5C47X, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C477), CB_RX5C47X, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C478), CB_RX5C47X, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C465), CB_RX5C46X, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_RICOH, PCI_PRODUCT_RICOH_Rx5C466), CB_RX5C46X, PCCBB_PCMCIA_MEM_32}, /* Toshiba products */ { MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC95), CB_TOPIC95, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC95B), CB_TOPIC95B, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC97), CB_TOPIC97, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_TOSHIBA2, PCI_PRODUCT_TOSHIBA2_ToPIC100), CB_TOPIC97, PCCBB_PCMCIA_MEM_32}, /* Cirrus Logic products */ { MAKEID(PCI_VENDOR_CIRRUS, PCI_PRODUCT_CIRRUS_CL_PD6832), CB_CIRRUS, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_CIRRUS, PCI_PRODUCT_CIRRUS_CL_PD6833), CB_CIRRUS, PCCBB_PCMCIA_MEM_32}, /* O2 Micro products */ { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6729), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6730), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6832), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6836), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6872), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6922), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6933), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_OZ6972), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, { MAKEID(PCI_VENDOR_O2MICRO, PCI_PRODUCT_O2MICRO_7223), CB_O2MICRO, PCCBB_PCMCIA_MEM_32}, /* sentinel, or Generic chip */ { 0 /* null id */ , CB_UNKNOWN, PCCBB_PCMCIA_MEM_32}, }; static int cb_chipset(u_int32_t pci_id, int *flagp) { const struct yenta_chipinfo *yc; /* Loop over except the last default entry. */ for (yc = yc_chipsets; yc < yc_chipsets + __arraycount(yc_chipsets) - 1; yc++) if (pci_id == yc->yc_id) break; if (flagp != NULL) *flagp = yc->yc_flags; return (yc->yc_chiptype); } void pccbbchilddet(device_t self, device_t child) { struct pccbb_softc *sc = device_private(self); int s; KASSERT(sc->sc_csc == device_private(child)); s = splbio(); if (sc->sc_csc == device_private(child)) sc->sc_csc = NULL; splx(s); } void pccbbattach(device_t parent, device_t self, void *aux) { struct pccbb_softc *sc = device_private(self); struct pci_attach_args *pa = aux; pci_chipset_tag_t pc = pa->pa_pc; pcireg_t busreg, reg, sock_base; bus_addr_t sockbase; int flags; #ifdef __HAVE_PCCBB_ATTACH_HOOK pccbb_attach_hook(parent, self, pa); #endif sc->sc_dev = self; mutex_init(&sc->sc_pwr_mtx, MUTEX_DEFAULT, IPL_BIO); cv_init(&sc->sc_pwr_cv, "pccpwr"); callout_init(&sc->sc_insert_ch, 0); callout_setfunc(&sc->sc_insert_ch, pci113x_insert, sc); sc->sc_chipset = cb_chipset(pa->pa_id, &flags); pci_aprint_devinfo(pa, NULL); DPRINTF(("(chipflags %x)", flags)); TAILQ_INIT(&sc->sc_memwindow); TAILQ_INIT(&sc->sc_iowindow); sc->sc_rbus_iot = rbus_pccbb_parent_io(pa); sc->sc_rbus_memt = rbus_pccbb_parent_mem(pa); #if 0 printf("pa->pa_memt: %08x vs rbus_mem->rb_bt: %08x\n", pa->pa_memt, sc->sc_rbus_memt->rb_bt); #endif sc->sc_flags &= ~CBB_MEMHMAPPED; /* * MAP socket registers and ExCA registers on memory-space * When no valid address is set on socket base registers (on pci * config space), get it not polite way. */ sock_base = pci_conf_read(pc, pa->pa_tag, PCI_SOCKBASE); if (PCI_MAPREG_MEM_ADDR(sock_base) >= 0x100000 && PCI_MAPREG_MEM_ADDR(sock_base) != 0xfffffff0) { /* The address must be valid. */ if (pci_mapreg_map(pa, PCI_SOCKBASE, PCI_MAPREG_TYPE_MEM, 0, &sc->sc_base_memt, &sc->sc_base_memh, &sockbase, &sc->sc_base_size)) { aprint_error_dev(self, "can't map socket base address 0x%lx\n", (unsigned long)sock_base); /* * I think it's funny: socket base registers must be * mapped on memory space, but ... */ if (pci_mapreg_map(pa, PCI_SOCKBASE, PCI_MAPREG_TYPE_IO, 0, &sc->sc_base_memt, &sc->sc_base_memh, &sockbase, &sc->sc_base_size)) { aprint_error_dev(self, "can't map socket base address" " 0x%lx: io mode\n", (unsigned long)sockbase); /* give up... allocate reg space via rbus. */ pci_conf_write(pc, pa->pa_tag, PCI_SOCKBASE, 0); } else sc->sc_flags |= CBB_MEMHMAPPED; } else { DPRINTF(("%s: socket base address 0x%lx\n", device_xname(self), (unsigned long)sockbase)); sc->sc_flags |= CBB_MEMHMAPPED; } } sc->sc_mem_start = 0; /* XXX */ sc->sc_mem_end = 0xffffffff; /* XXX */ busreg = pci_conf_read(pc, pa->pa_tag, PCI_BUSNUM); /* pccbb_machdep.c end */ #if defined CBB_DEBUG { static const char *intrname[] = { "NON", "A", "B", "C", "D" }; aprint_debug_dev(self, "intrpin %s, intrtag %d\n", intrname[pa->pa_intrpin], pa->pa_intrline); } #endif /* setup softc */ sc->sc_pc = pc; sc->sc_iot = pa->pa_iot; sc->sc_memt = pa->pa_memt; sc->sc_dmat = pa->pa_dmat; sc->sc_tag = pa->pa_tag; memcpy(&sc->sc_pa, pa, sizeof(*pa)); sc->sc_pcmcia_flags = flags; /* set PCMCIA facility */ /* Disable legacy register mapping. */ switch (sc->sc_chipset) { case CB_RX5C46X: /* fallthrough */ #if 0 /* The RX5C47X-series requires writes to the PCI_LEGACY register. */ case CB_RX5C47X: #endif /* * The legacy pcic io-port on Ricoh RX5C46X CardBus bridges * cannot be disabled by substituting 0 into PCI_LEGACY * register. Ricoh CardBus bridges have special bits on Bridge * control reg (addr 0x3e on PCI config space). */ reg = pci_conf_read(pc, pa->pa_tag, PCI_BRIDGE_CONTROL_REG); reg &= ~(CB_BCRI_RL_3E0_ENA | CB_BCRI_RL_3E2_ENA); pci_conf_write(pc, pa->pa_tag, PCI_BRIDGE_CONTROL_REG, reg); break; default: /* XXX I don't know proper way to kill legacy I/O. */ pci_conf_write(pc, pa->pa_tag, PCI_LEGACY, 0x0); break; } if (!pmf_device_register(self, pccbb_suspend, pccbb_resume)) aprint_error_dev(self, "couldn't establish power handler\n"); config_defer(self, pccbb_pci_callback); } int pccbbdetach(device_t self, int flags) { struct pccbb_softc *sc = device_private(self); pci_chipset_tag_t pc = sc->sc_pa.pa_pc; bus_space_tag_t bmt = sc->sc_base_memt; bus_space_handle_t bmh = sc->sc_base_memh; uint32_t sockmask; int rc; if ((rc = config_detach_children(self, flags)) != 0) return rc; if (!LIST_EMPTY(&sc->sc_pil)) { panic("%s: interrupt handlers still registered", device_xname(self)); return EBUSY; } if (sc->sc_ih != NULL) { pci_intr_disestablish(pc, sc->sc_ih); sc->sc_ih = NULL; } /* CSC Interrupt: turn off card detect and power cycle interrupts */ sockmask = bus_space_read_4(bmt, bmh, CB_SOCKET_MASK); sockmask &= ~(CB_SOCKET_MASK_CSTS | CB_SOCKET_MASK_CD | CB_SOCKET_MASK_POWER); bus_space_write_4(bmt, bmh, CB_SOCKET_MASK, sockmask); /* reset interrupt */ bus_space_write_4(bmt, bmh, CB_SOCKET_EVENT, bus_space_read_4(bmt, bmh, CB_SOCKET_EVENT)); switch (sc->sc_flags & (CBB_MEMHMAPPED|CBB_SPECMAPPED)) { case CBB_MEMHMAPPED: bus_space_unmap(bmt, bmh, sc->sc_base_size); break; case CBB_MEMHMAPPED|CBB_SPECMAPPED: #if rbus { pcireg_t sockbase; sockbase = pci_conf_read(pc, sc->sc_tag, PCI_SOCKBASE); rbus_space_free(sc->sc_rbus_memt, bmh, 0x1000, NULL); } #else bus_space_free(bmt, bmh, 0x1000); #endif } sc->sc_flags &= ~(CBB_MEMHMAPPED|CBB_SPECMAPPED); if (!TAILQ_EMPTY(&sc->sc_iowindow)) aprint_error_dev(self, "i/o windows not empty"); if (!TAILQ_EMPTY(&sc->sc_memwindow)) aprint_error_dev(self, "memory windows not empty"); callout_stop(&sc->sc_insert_ch); callout_destroy(&sc->sc_insert_ch); mutex_destroy(&sc->sc_pwr_mtx); cv_destroy(&sc->sc_pwr_cv); return 0; } /* * static void pccbb_pci_callback(device_t self) * * The actual attach routine: get memory space for YENTA register * space, setup YENTA register and route interrupt. * * This function should be deferred because this device may obtain * memory space dynamically. This function must avoid obtaining * memory area which has already kept for another device. */ static void pccbb_pci_callback(device_t self) { struct pccbb_softc *sc = device_private(self); pci_chipset_tag_t pc = sc->sc_pc; bus_addr_t sockbase; struct cbslot_attach_args cba; struct pcmciabus_attach_args paa; struct cardslot_attach_args caa; device_t csc; if (!(sc->sc_flags & CBB_MEMHMAPPED)) { /* The socket registers aren't mapped correctly. */ #if rbus if (rbus_space_alloc(sc->sc_rbus_memt, 0, 0x1000, 0x0fff, (sc->sc_chipset == CB_RX5C47X || sc->sc_chipset == CB_TI113X) ? 0x10000 : 0x1000, 0, &sockbase, &sc->sc_base_memh)) { return; } sc->sc_base_memt = sc->sc_memt; pci_conf_write(pc, sc->sc_tag, PCI_SOCKBASE, sockbase); DPRINTF(("%s: CardBus register address 0x%lx -> 0x%lx\n", device_xname(self), (unsigned long)sockbase, (unsigned long)pci_conf_read(pc, sc->sc_tag, PCI_SOCKBASE))); #else sc->sc_base_memt = sc->sc_memt; #if !defined CBB_PCI_BASE #define CBB_PCI_BASE 0x20000000 #endif if (bus_space_alloc(sc->sc_base_memt, CBB_PCI_BASE, 0xffffffff, 0x1000, 0x1000, 0, 0, &sockbase, &sc->sc_base_memh)) { /* cannot allocate memory space */ return; } pci_conf_write(pc, sc->sc_tag, PCI_SOCKBASE, sockbase); DPRINTF(("%s: CardBus register address 0x%lx -> 0x%lx\n", device_xname(self), (unsigned long)sock_base, (unsigned long)pci_conf_read(pc, sc->sc_tag, PCI_SOCKBASE))); #endif sc->sc_flags |= CBB_MEMHMAPPED|CBB_SPECMAPPED; } /* clear data structure for child device interrupt handlers */ LIST_INIT(&sc->sc_pil); /* bus bridge initialization */ pccbb_chipinit(sc); sc->sc_pil_intr_enable = true; { u_int32_t sockstat; sockstat = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh, CB_SOCKET_STAT); if (0 == (sockstat & CB_SOCKET_STAT_CD)) { sc->sc_flags |= CBB_CARDEXIST; } } /* * attach cardbus */ { pcireg_t busreg = pci_conf_read(pc, sc->sc_tag, PCI_BUSNUM); pcireg_t bhlc = pci_conf_read(pc, sc->sc_tag, PCI_BHLC_REG); /* initialize cbslot_attach */ cba.cba_iot = sc->sc_iot; cba.cba_memt = sc->sc_memt; cba.cba_dmat = sc->sc_dmat; cba.cba_bus = (busreg >> 8) & 0x0ff; cba.cba_cc = (void *)sc; cba.cba_cf = &pccbb_funcs; #if rbus cba.cba_rbus_iot = sc->sc_rbus_iot; cba.cba_rbus_memt = sc->sc_rbus_memt; #endif cba.cba_cacheline = PCI_CACHELINE(bhlc); cba.cba_max_lattimer = PCI_LATTIMER(bhlc); aprint_verbose_dev(self, "cacheline 0x%x lattimer 0x%x\n", cba.cba_cacheline, cba.cba_max_lattimer); aprint_verbose_dev(self, "bhlc 0x%x\n", bhlc); #if defined SHOW_REGS cb_show_regs(sc->sc_pc, sc->sc_tag, sc->sc_base_memt, sc->sc_base_memh); #endif } pccbb_pcmcia_attach_setup(sc, &paa); caa.caa_cb_attach = NULL; if (cba.cba_bus == 0) aprint_error_dev(self, "secondary bus number uninitialized; try PCI_BUS_FIXUP\n"); else caa.caa_cb_attach = &cba; caa.caa_16_attach = &paa; pccbb_intrinit(sc); if (NULL != (csc = config_found_ia(self, "pcmciaslot", &caa, cbbprint))) { DPRINTF(("%s: found cardslot\n", __func__)); sc->sc_csc = device_private(csc); } return; } /* * static void pccbb_chipinit(struct pccbb_softc *sc) * * This function initialize YENTA chip registers listed below: * 1) PCI command reg, * 2) PCI and CardBus latency timer, * 3) route PCI interrupt, * 4) close all memory and io windows. * 5) turn off bus power. * 6) card detect and power cycle interrupts on. * 7) clear interrupt */ static void pccbb_chipinit(struct pccbb_softc *sc) { pci_chipset_tag_t pc = sc->sc_pc; pcitag_t tag = sc->sc_tag; bus_space_tag_t bmt = sc->sc_base_memt; bus_space_handle_t bmh = sc->sc_base_memh; pcireg_t bcr, bhlc, cbctl, csr, lscp, mfunc, mrburst, slotctl, sockctl, sysctrl; /* * Set PCI command reg. * Some laptop's BIOSes (i.e. TICO) do not enable CardBus chip. */ csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG); /* I believe it is harmless. */ csr |= (PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE); /* All O2 Micro chips have broken parity-error reporting * until proven otherwise. The OZ6933 PCI-CardBus Bridge * is known to have the defect---see PR kern/38698. */ if (sc->sc_chipset != CB_O2MICRO) csr |= PCI_COMMAND_PARITY_ENABLE; csr |= PCI_COMMAND_SERR_ENABLE; pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr); /* * Set CardBus latency timer. */ lscp = pci_conf_read(pc, tag, PCI_CB_LSCP_REG); if (PCI_CB_LATENCY(lscp) < 0x20) { lscp &= ~(PCI_CB_LATENCY_MASK << PCI_CB_LATENCY_SHIFT); lscp |= (0x20 << PCI_CB_LATENCY_SHIFT); pci_conf_write(pc, tag, PCI_CB_LSCP_REG, lscp); } DPRINTF(("CardBus latency timer 0x%x (%x)\n", PCI_CB_LATENCY(lscp), pci_conf_read(pc, tag, PCI_CB_LSCP_REG))); /* * Set PCI latency timer. */ bhlc = pci_conf_read(pc, tag, PCI_BHLC_REG); if (PCI_LATTIMER(bhlc) < 0x10) { bhlc &= ~(PCI_LATTIMER_MASK << PCI_LATTIMER_SHIFT); bhlc |= (0x10 << PCI_LATTIMER_SHIFT); pci_conf_write(pc, tag, PCI_BHLC_REG, bhlc); } DPRINTF(("PCI latency timer 0x%x (%x)\n", PCI_LATTIMER(bhlc), pci_conf_read(pc, tag, PCI_BHLC_REG))); /* Route functional interrupts to PCI. */ bcr = pci_conf_read(pc, tag, PCI_BRIDGE_CONTROL_REG); bcr |= CB_BCR_INTR_IREQ_ENABLE; /* disable PCI Intr */ bcr |= CB_BCR_WRITE_POST_ENABLE; /* enable write post */ /* assert reset */ bcr |= PCI_BRIDGE_CONTROL_SECBR << PCI_BRIDGE_CONTROL_SHIFT; /* Set master abort mode to 1, forward SERR# from secondary * to primary, and detect parity errors on secondary. */ bcr |= PCI_BRIDGE_CONTROL_MABRT << PCI_BRIDGE_CONTROL_SHIFT; bcr |= PCI_BRIDGE_CONTROL_SERR << PCI_BRIDGE_CONTROL_SHIFT; bcr |= PCI_BRIDGE_CONTROL_PERE << PCI_BRIDGE_CONTROL_SHIFT; pci_conf_write(pc, tag, PCI_BRIDGE_CONTROL_REG, bcr); switch (sc->sc_chipset) { case CB_TI113X: cbctl = pci_conf_read(pc, tag, PCI_CBCTRL); /* This bit is shared, but may read as 0 on some chips, so set it explicitly on both functions. */ cbctl |= PCI113X_CBCTRL_PCI_IRQ_ENA; /* CSC intr enable */ cbctl |= PCI113X_CBCTRL_PCI_CSC; /* functional intr prohibit | prohibit ISA routing */ cbctl &= ~(PCI113X_CBCTRL_PCI_INTR | PCI113X_CBCTRL_INT_MASK); pci_conf_write(pc, tag, PCI_CBCTRL, cbctl); break; case CB_TI1420: sysctrl = pci_conf_read(pc, tag, PCI_SYSCTRL); mrburst = pccbb_burstup ? PCI1420_SYSCTRL_MRBURST : PCI1420_SYSCTRL_MRBURSTDN; if ((sysctrl & PCI1420_SYSCTRL_MRBURST) == mrburst) { printf("%s: %swrite bursts enabled\n", device_xname(sc->sc_dev), pccbb_burstup ? "read/" : ""); } else if (pccbb_burstup) { printf("%s: enabling read/write bursts\n", device_xname(sc->sc_dev)); sysctrl |= PCI1420_SYSCTRL_MRBURST; pci_conf_write(pc, tag, PCI_SYSCTRL, sysctrl); } else { printf("%s: disabling read bursts, " "enabling write bursts\n", device_xname(sc->sc_dev)); sysctrl |= PCI1420_SYSCTRL_MRBURSTDN; sysctrl &= ~PCI1420_SYSCTRL_MRBURSTUP; pci_conf_write(pc, tag, PCI_SYSCTRL, sysctrl); } /*FALLTHROUGH*/ 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. */ mfunc = pci_conf_read(pc, tag, PCI12XX_MFUNC); if ((mfunc & (PCI12XX_MFUNC_PIN0 | PCI12XX_MFUNC_PIN1)) == 0) { /* Enable PCI interrupt /INTA */ mfunc |= PCI12XX_MFUNC_PIN0_INTA; /* XXX this is TI1520 only */ if ((pci_conf_read(pc, tag, PCI_SYSCTRL) & PCI12XX_SYSCTRL_INTRTIE) == 0) /* Enable PCI interrupt /INTB */ mfunc |= PCI12XX_MFUNC_PIN1_INTB; pci_conf_write(pc, tag, PCI12XX_MFUNC, mfunc); } /* fallthrough */ case CB_TI125X: /* * Disable zoom video. Some machines initialize this * improperly and experience has shown that this helps * prevent strange behavior. */ pci_conf_write(pc, tag, PCI12XX_MMCTRL, 0); sysctrl = pci_conf_read(pc, tag, PCI_SYSCTRL); sysctrl |= PCI12XX_SYSCTRL_VCCPROT; pci_conf_write(pc, tag, PCI_SYSCTRL, sysctrl); cbctl = pci_conf_read(pc, tag, PCI_CBCTRL); cbctl |= PCI12XX_CBCTRL_CSC; pci_conf_write(pc, tag, PCI_CBCTRL, cbctl); break; case CB_TOPIC95B: sockctl = pci_conf_read(pc, tag, TOPIC_SOCKET_CTRL); sockctl |= TOPIC_SOCKET_CTRL_SCR_IRQSEL; pci_conf_write(pc, tag, TOPIC_SOCKET_CTRL, sockctl); slotctl = pci_conf_read(pc, tag, TOPIC_SLOT_CTRL); DPRINTF(("%s: topic slot ctrl reg 0x%x -> ", device_xname(sc->sc_dev), slotctl)); slotctl |= (TOPIC_SLOT_CTRL_SLOTON | TOPIC_SLOT_CTRL_SLOTEN | TOPIC_SLOT_CTRL_ID_LOCK | TOPIC_SLOT_CTRL_CARDBUS); slotctl &= ~TOPIC_SLOT_CTRL_SWDETECT; DPRINTF(("0x%x\n", slotctl)); pci_conf_write(pc, tag, TOPIC_SLOT_CTRL, slotctl); break; case CB_TOPIC97: slotctl = pci_conf_read(pc, tag, TOPIC_SLOT_CTRL); DPRINTF(("%s: topic slot ctrl reg 0x%x -> ", device_xname(sc->sc_dev), slotctl)); slotctl |= (TOPIC_SLOT_CTRL_SLOTON | TOPIC_SLOT_CTRL_SLOTEN | TOPIC_SLOT_CTRL_ID_LOCK | TOPIC_SLOT_CTRL_CARDBUS); slotctl &= ~TOPIC_SLOT_CTRL_SWDETECT; slotctl |= TOPIC97_SLOT_CTRL_PCIINT; slotctl &= ~(TOPIC97_SLOT_CTRL_STSIRQP | TOPIC97_SLOT_CTRL_IRQP); DPRINTF(("0x%x\n", slotctl)); pci_conf_write(pc, tag, TOPIC_SLOT_CTRL, slotctl); /* make sure to assert LV card support bits */ bus_space_write_1(sc->sc_base_memt, sc->sc_base_memh, 0x800 + 0x3e, bus_space_read_1(sc->sc_base_memt, sc->sc_base_memh, 0x800 + 0x3e) | 0x03); break; } /* Close all memory and I/O windows. */ pci_conf_write(pc, tag, PCI_CB_MEMBASE0, 0xffffffff); pci_conf_write(pc, tag, PCI_CB_MEMLIMIT0, 0); pci_conf_write(pc, tag, PCI_CB_MEMBASE1, 0xffffffff); pci_conf_write(pc, tag, PCI_CB_MEMLIMIT1, 0); pci_conf_write(pc, tag, PCI_CB_IOBASE0, 0xffffffff); pci_conf_write(pc, tag, PCI_CB_IOLIMIT0, 0); pci_conf_write(pc, tag, PCI_CB_IOBASE1, 0xffffffff); pci_conf_write(pc, tag, PCI_CB_IOLIMIT1, 0); /* reset 16-bit pcmcia bus */ bus_space_write_1(bmt, bmh, 0x800 + PCIC_INTR, bus_space_read_1(bmt, bmh, 0x800 + PCIC_INTR) & ~PCIC_INTR_RESET); /* turn off power */ pccbb_power(sc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); } static void pccbb_intrinit(struct pccbb_softc *sc) { pcireg_t sockmask; const char *intrstr = NULL; pci_intr_handle_t ih; pci_chipset_tag_t pc = sc->sc_pc; bus_space_tag_t bmt = sc->sc_base_memt; bus_space_handle_t bmh = sc->sc_base_memh; /* Map and establish the interrupt. */ if (pci_intr_map(&sc->sc_pa, &ih)) { aprint_error_dev(sc->sc_dev, "couldn't map interrupt\n"); return; } intrstr = pci_intr_string(pc, ih); /* * XXX pccbbintr should be called under the priority lower * than any other hard interrupts. */ KASSERT(sc->sc_ih == NULL); sc->sc_ih = pci_intr_establish(pc, ih, IPL_BIO, pccbbintr, sc); if (sc->sc_ih == NULL) { aprint_error_dev(sc->sc_dev, "couldn't establish interrupt"); if (intrstr != NULL) aprint_error(" at %s\n", intrstr); else aprint_error("\n"); return; } aprint_normal_dev(sc->sc_dev, "interrupting at %s\n", intrstr); /* CSC Interrupt: Card detect and power cycle interrupts on */ sockmask = bus_space_read_4(bmt, bmh, CB_SOCKET_MASK); sockmask |= CB_SOCKET_MASK_CSTS | CB_SOCKET_MASK_CD | CB_SOCKET_MASK_POWER; bus_space_write_4(bmt, bmh, CB_SOCKET_MASK, sockmask); /* reset interrupt */ bus_space_write_4(bmt, bmh, CB_SOCKET_EVENT, bus_space_read_4(bmt, bmh, CB_SOCKET_EVENT)); } /* * STATIC void pccbb_pcmcia_attach_setup(struct pccbb_softc *sc, * struct pcmciabus_attach_args *paa) * * This function attaches 16-bit PCcard bus. */ STATIC void pccbb_pcmcia_attach_setup(struct pccbb_softc *sc, struct pcmciabus_attach_args *paa) { #if rbus rbus_tag_t rb; #endif /* * We need to do a few things here: * 1) Disable routing of CSC and functional interrupts to ISA IRQs by * setting the IRQ numbers to 0. * 2) Set bit 4 of PCIC_INTR, which is needed on some chips to enable * routing of CSC interrupts (e.g. card removal) to PCI while in * PCMCIA mode. We just leave this set all the time. * 3) Enable card insertion/removal interrupts in case the chip also * needs that while in PCMCIA mode. * 4) Clear any pending CSC interrupt. */ Pcic_write(sc, PCIC_INTR, PCIC_INTR_ENABLE); if (sc->sc_chipset == CB_TI113X) { Pcic_write(sc, PCIC_CSC_INTR, 0); } else { Pcic_write(sc, PCIC_CSC_INTR, PCIC_CSC_INTR_CD_ENABLE); Pcic_read(sc, PCIC_CSC); } /* initialize pcmcia bus attachment */ paa->paa_busname = "pcmcia"; paa->pct = &pccbb_pcmcia_funcs; paa->pch = sc; #if rbus rb = sc->sc_rbus_iot; #endif return; } /* * int pccbbintr(arg) * void *arg; * This routine handles the interrupt from Yenta PCI-CardBus bridge * itself. */ int pccbbintr(void *arg) { struct pccbb_softc *sc = (struct pccbb_softc *)arg; struct cardslot_softc *csc; u_int32_t sockevent, sockstate; bus_space_tag_t memt = sc->sc_base_memt; bus_space_handle_t memh = sc->sc_base_memh; if (!device_has_power(sc->sc_dev)) return 0; sockevent = bus_space_read_4(memt, memh, CB_SOCKET_EVENT); bus_space_write_4(memt, memh, CB_SOCKET_EVENT, sockevent); Pcic_read(sc, PCIC_CSC); if (sockevent != 0) { DPRINTF(("%s: enter sockevent %" PRIx32 "\n", __func__, sockevent)); } /* XXX sockevent == CB_SOCKET_EVENT_CSTS|CB_SOCKET_EVENT_POWER * does occur in the wild. Check for a _POWER event before * possibly exiting because of an _CSTS event. */ if (sockevent & CB_SOCKET_EVENT_POWER) { DPRINTF(("Powercycling because of socket event\n")); /* XXX: Does not happen when attaching a 16-bit card */ mutex_enter(&sc->sc_pwr_mtx); sc->sc_pwrcycle++; cv_signal(&sc->sc_pwr_cv); mutex_exit(&sc->sc_pwr_mtx); } /* Sometimes a change of CSTSCHG# accompanies the first * interrupt from an Atheros WLAN. That generates a * CB_SOCKET_EVENT_CSTS event on the bridge. The event * isn't interesting to pccbb(4), so we used to ignore the * interrupt. Now, let the child devices try to handle * the interrupt, instead. The Atheros NIC produces * interrupts more reliably, now: used to be that it would * only interrupt if the driver avoided powering down the * NIC's cardslot, and then the NIC would only work after * it was reset a second time. */ if (sockevent == 0 || (sockevent & ~(CB_SOCKET_EVENT_POWER|CB_SOCKET_EVENT_CD)) != 0) { /* This intr is not for me: it may be for my child devices. */ if (sc->sc_pil_intr_enable) { return pccbbintr_function(sc); } else { return 0; } } if (sockevent & CB_SOCKET_EVENT_CD) { sockstate = bus_space_read_4(memt, memh, CB_SOCKET_STAT); if (0x00 != (sockstate & CB_SOCKET_STAT_CD)) { /* A card should be removed. */ if (sc->sc_flags & CBB_CARDEXIST) { DPRINTF(("%s: 0x%08x", device_xname(sc->sc_dev), sockevent)); DPRINTF((" card removed, 0x%08x\n", sockstate)); sc->sc_flags &= ~CBB_CARDEXIST; if ((csc = sc->sc_csc) == NULL) ; else if (csc->sc_status & CARDSLOT_STATUS_CARD_16) { cardslot_event_throw(csc, CARDSLOT_EVENT_REMOVAL_16); } else if (csc->sc_status & CARDSLOT_STATUS_CARD_CB) { /* Cardbus intr removed */ cardslot_event_throw(csc, CARDSLOT_EVENT_REMOVAL_CB); } } else if (sc->sc_flags & CBB_INSERTING) { sc->sc_flags &= ~CBB_INSERTING; callout_stop(&sc->sc_insert_ch); } } else if (0x00 == (sockstate & CB_SOCKET_STAT_CD) && /* * The pccbbintr may called from powerdown hook when * the system resumed, to detect the card * insertion/removal during suspension. */ (sc->sc_flags & CBB_CARDEXIST) == 0) { if (sc->sc_flags & CBB_INSERTING) { callout_stop(&sc->sc_insert_ch); } callout_schedule(&sc->sc_insert_ch, mstohz(200)); sc->sc_flags |= CBB_INSERTING; } } return (1); } /* * static int pccbbintr_function(struct pccbb_softc *sc) * * This function calls each interrupt handler registered at the * bridge. The interrupt handlers are called in registered order. */ static int pccbbintr_function(struct pccbb_softc *sc) { int retval = 0, val; struct pccbb_intrhand_list *pil; int s; LIST_FOREACH(pil, &sc->sc_pil, pil_next) { s = splraiseipl(pil->pil_icookie); val = (*pil->pil_func)(pil->pil_arg); splx(s); retval = retval == 1 ? 1 : retval == 0 ? val : val != 0 ? val : retval; } return retval; } static void pci113x_insert(void *arg) { struct pccbb_softc *sc = arg; struct cardslot_softc *csc; u_int32_t sockevent, sockstate; if (!(sc->sc_flags & CBB_INSERTING)) { /* We add a card only under inserting state. */ return; } sc->sc_flags &= ~CBB_INSERTING; sockevent = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh, CB_SOCKET_EVENT); sockstate = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh, CB_SOCKET_STAT); if (0 == (sockstate & CB_SOCKET_STAT_CD)) { /* card exist */ DPRINTF(("%s: 0x%08x", device_xname(sc->sc_dev), sockevent)); DPRINTF((" card inserted, 0x%08x\n", sockstate)); sc->sc_flags |= CBB_CARDEXIST; /* call pccard interrupt handler here */ if ((csc = sc->sc_csc) == NULL) ; else if (sockstate & CB_SOCKET_STAT_16BIT) { /* 16-bit card found */ cardslot_event_throw(csc, CARDSLOT_EVENT_INSERTION_16); } else if (sockstate & CB_SOCKET_STAT_CB) { /* cardbus card found */ cardslot_event_throw(csc, CARDSLOT_EVENT_INSERTION_CB); } else { /* who are you? */ } } else { callout_schedule(&sc->sc_insert_ch, mstohz(100)); } } #define PCCBB_PCMCIA_OFFSET 0x800 static u_int8_t pccbb_pcmcia_read(struct pccbb_softc *sc, int reg) { bus_space_barrier(sc->sc_base_memt, sc->sc_base_memh, PCCBB_PCMCIA_OFFSET + reg, 1, BUS_SPACE_BARRIER_READ); return bus_space_read_1(sc->sc_base_memt, sc->sc_base_memh, PCCBB_PCMCIA_OFFSET + reg); } static void pccbb_pcmcia_write(struct pccbb_softc *sc, int reg, u_int8_t val) { bus_space_write_1(sc->sc_base_memt, sc->sc_base_memh, PCCBB_PCMCIA_OFFSET + reg, val); bus_space_barrier(sc->sc_base_memt, sc->sc_base_memh, PCCBB_PCMCIA_OFFSET + reg, 1, BUS_SPACE_BARRIER_WRITE); } /* * STATIC int pccbb_ctrl(cardbus_chipset_tag_t, int) */ STATIC int pccbb_ctrl(cardbus_chipset_tag_t ct, int command) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; switch (command) { case CARDBUS_CD: if (2 == pccbb_detect_card(sc)) { int retval = 0; int status = cb_detect_voltage(sc); if (PCCARD_VCC_5V & status) { retval |= CARDBUS_5V_CARD; } if (PCCARD_VCC_3V & status) { retval |= CARDBUS_3V_CARD; } if (PCCARD_VCC_XV & status) { retval |= CARDBUS_XV_CARD; } if (PCCARD_VCC_YV & status) { retval |= CARDBUS_YV_CARD; } return retval; } else { return 0; } case CARDBUS_RESET: return cb_reset(sc); case CARDBUS_IO_ENABLE: /* fallthrough */ case CARDBUS_IO_DISABLE: /* fallthrough */ case CARDBUS_MEM_ENABLE: /* fallthrough */ case CARDBUS_MEM_DISABLE: /* fallthrough */ case CARDBUS_BM_ENABLE: /* fallthrough */ case CARDBUS_BM_DISABLE: /* fallthrough */ /* XXX: I think we don't need to call this function below. */ return pccbb_cardenable(sc, command); } return 0; } STATIC int pccbb_power_ct(cardbus_chipset_tag_t ct, int command) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; return pccbb_power(sc, command); } /* * STATIC int pccbb_power(cardbus_chipset_tag_t, int) * This function returns true when it succeeds and returns false when * it fails. */ STATIC int pccbb_power(struct pccbb_softc *sc, int command) { u_int32_t status, osock_ctrl, sock_ctrl, reg_ctrl; bus_space_tag_t memt = sc->sc_base_memt; bus_space_handle_t memh = sc->sc_base_memh; int on = 0, pwrcycle, times; struct timeval before, after, diff; DPRINTF(("pccbb_power: %s and %s [0x%x]\n", (command & CARDBUS_VCCMASK) == CARDBUS_VCC_UC ? "CARDBUS_VCC_UC" : (command & CARDBUS_VCCMASK) == CARDBUS_VCC_5V ? "CARDBUS_VCC_5V" : (command & CARDBUS_VCCMASK) == CARDBUS_VCC_3V ? "CARDBUS_VCC_3V" : (command & CARDBUS_VCCMASK) == CARDBUS_VCC_XV ? "CARDBUS_VCC_XV" : (command & CARDBUS_VCCMASK) == CARDBUS_VCC_YV ? "CARDBUS_VCC_YV" : (command & CARDBUS_VCCMASK) == CARDBUS_VCC_0V ? "CARDBUS_VCC_0V" : "UNKNOWN", (command & CARDBUS_VPPMASK) == CARDBUS_VPP_UC ? "CARDBUS_VPP_UC" : (command & CARDBUS_VPPMASK) == CARDBUS_VPP_12V ? "CARDBUS_VPP_12V" : (command & CARDBUS_VPPMASK) == CARDBUS_VPP_VCC ? "CARDBUS_VPP_VCC" : (command & CARDBUS_VPPMASK) == CARDBUS_VPP_0V ? "CARDBUS_VPP_0V" : "UNKNOWN", command)); status = bus_space_read_4(memt, memh, CB_SOCKET_STAT); osock_ctrl = sock_ctrl = bus_space_read_4(memt, memh, CB_SOCKET_CTRL); switch (command & CARDBUS_VCCMASK) { case CARDBUS_VCC_UC: break; case CARDBUS_VCC_5V: on++; if (CB_SOCKET_STAT_5VCARD & status) { /* check 5 V card */ sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK; sock_ctrl |= CB_SOCKET_CTRL_VCC_5V; } else { aprint_error_dev(sc->sc_dev, "BAD voltage request: no 5 V card\n"); return 0; } break; case CARDBUS_VCC_3V: on++; if (CB_SOCKET_STAT_3VCARD & status) { sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK; sock_ctrl |= CB_SOCKET_CTRL_VCC_3V; } else { aprint_error_dev(sc->sc_dev, "BAD voltage request: no 3.3 V card\n"); return 0; } break; case CARDBUS_VCC_0V: sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK; break; default: return 0; /* power NEVER changed */ } switch (command & CARDBUS_VPPMASK) { case CARDBUS_VPP_UC: break; case CARDBUS_VPP_0V: sock_ctrl &= ~CB_SOCKET_CTRL_VPPMASK; break; case CARDBUS_VPP_VCC: sock_ctrl &= ~CB_SOCKET_CTRL_VPPMASK; sock_ctrl |= ((sock_ctrl >> 4) & 0x07); break; case CARDBUS_VPP_12V: sock_ctrl &= ~CB_SOCKET_CTRL_VPPMASK; sock_ctrl |= CB_SOCKET_CTRL_VPP_12V; break; } aprint_debug_dev(sc->sc_dev, "osock_ctrl %#" PRIx32 " sock_ctrl %#" PRIx32 "\n", osock_ctrl, sock_ctrl); microtime(&before); mutex_enter(&sc->sc_pwr_mtx); pwrcycle = sc->sc_pwrcycle; bus_space_write_4(memt, memh, CB_SOCKET_CTRL, sock_ctrl); /* * Wait as long as 200ms for a power-cycle interrupt. If * interrupts are enabled, but the socket has already * changed to the desired status, keep waiting for the * interrupt. "Consuming" the interrupt in this way keeps * the interrupt from prematurely waking some subsequent * pccbb_power call. * * XXX Not every bridge interrupts on the ->OFF transition. * XXX That's ok, we will time-out after 200ms. * * XXX The power cycle event will never happen when attaching * XXX a 16-bit card. That's ok, we will time-out after * XXX 200ms. */ for (times = 5; --times >= 0; ) { if (cold) DELAY(40 * 1000); else { (void)cv_timedwait(&sc->sc_pwr_cv, &sc->sc_pwr_mtx, mstohz(40)); if (pwrcycle == sc->sc_pwrcycle) continue; } status = bus_space_read_4(memt, memh, CB_SOCKET_STAT); if ((status & CB_SOCKET_STAT_PWRCYCLE) != 0 && on) break; if ((status & CB_SOCKET_STAT_PWRCYCLE) == 0 && !on) break; } mutex_exit(&sc->sc_pwr_mtx); microtime(&after); timersub(&after, &before, &diff); aprint_debug_dev(sc->sc_dev, "wait took%s %lld.%06lds\n", (on && times < 0) ? " too long" : "", (long long)diff.tv_sec, (long)diff.tv_usec); /* * Ok, wait a bit longer for things to settle. */ if (on && sc->sc_chipset == CB_TOPIC95B) delay_ms(100, sc); status = bus_space_read_4(memt, memh, CB_SOCKET_STAT); if (on && sc->sc_chipset != CB_TOPIC95B) { if ((status & CB_SOCKET_STAT_PWRCYCLE) == 0) aprint_error_dev(sc->sc_dev, "power on failed?\n"); } if (status & CB_SOCKET_STAT_BADVCC) { /* bad Vcc request */ aprint_error_dev(sc->sc_dev, "bad Vcc request. sock_ctrl 0x%x, sock_status 0x%x\n", sock_ctrl, status); aprint_error_dev(sc->sc_dev, "disabling socket\n"); sock_ctrl &= ~CB_SOCKET_CTRL_VCCMASK; sock_ctrl &= ~CB_SOCKET_CTRL_VPPMASK; bus_space_write_4(memt, memh, CB_SOCKET_CTRL, sock_ctrl); status &= ~CB_SOCKET_STAT_BADVCC; bus_space_write_4(memt, memh, CB_SOCKET_FORCE, status); printf("new status 0x%x\n", bus_space_read_4(memt, memh, CB_SOCKET_STAT)); return 0; } if (sc->sc_chipset == CB_TOPIC97) { reg_ctrl = pci_conf_read(sc->sc_pc, sc->sc_tag, TOPIC_REG_CTRL); reg_ctrl &= ~TOPIC97_REG_CTRL_TESTMODE; if ((command & CARDBUS_VCCMASK) == CARDBUS_VCC_0V) reg_ctrl &= ~TOPIC97_REG_CTRL_CLKRUN_ENA; else reg_ctrl |= TOPIC97_REG_CTRL_CLKRUN_ENA; pci_conf_write(sc->sc_pc, sc->sc_tag, TOPIC_REG_CTRL, reg_ctrl); } return 1; /* power changed correctly */ } /* * static int pccbb_detect_card(struct pccbb_softc *sc) * return value: 0 if no card exists. * 1 if 16-bit card exists. * 2 if cardbus card exists. */ static int pccbb_detect_card(struct pccbb_softc *sc) { bus_space_handle_t base_memh = sc->sc_base_memh; bus_space_tag_t base_memt = sc->sc_base_memt; u_int32_t sockstat = bus_space_read_4(base_memt, base_memh, CB_SOCKET_STAT); int retval = 0; /* CD1 and CD2 asserted */ if (0x00 == (sockstat & CB_SOCKET_STAT_CD)) { /* card must be present */ if (!(CB_SOCKET_STAT_NOTCARD & sockstat)) { /* NOTACARD DEASSERTED */ if (CB_SOCKET_STAT_CB & sockstat) { /* CardBus mode */ retval = 2; } else if (CB_SOCKET_STAT_16BIT & sockstat) { /* 16-bit mode */ retval = 1; } } } return retval; } /* * STATIC int cb_reset(struct pccbb_softc *sc) * This function resets CardBus card. */ STATIC int cb_reset(struct pccbb_softc *sc) { /* * Reset Assert at least 20 ms * Some machines request longer duration. */ int reset_duration = (sc->sc_chipset == CB_RX5C47X ? 400 : 50); u_int32_t bcr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_BRIDGE_CONTROL_REG); aprint_debug("%s: enter bcr %" PRIx32 "\n", __func__, bcr); /* Reset bit Assert (bit 6 at 0x3E) */ bcr |= PCI_BRIDGE_CONTROL_SECBR << PCI_BRIDGE_CONTROL_SHIFT; pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_BRIDGE_CONTROL_REG, bcr); aprint_debug("%s: wrote bcr %" PRIx32 "\n", __func__, bcr); delay_ms(reset_duration, sc); if (CBB_CARDEXIST & sc->sc_flags) { /* A card exists. Reset it! */ /* Reset bit Deassert (bit 6 at 0x3E) */ bcr &= ~(PCI_BRIDGE_CONTROL_SECBR << PCI_BRIDGE_CONTROL_SHIFT); pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_BRIDGE_CONTROL_REG, bcr); aprint_debug("%s: wrote bcr %" PRIx32 "\n", __func__, bcr); delay_ms(reset_duration, sc); aprint_debug("%s: end of delay\n", __func__); } /* No card found on the slot. Keep Reset. */ return 1; } /* * STATIC int cb_detect_voltage(struct pccbb_softc *sc) * This function detect card Voltage. */ STATIC int cb_detect_voltage(struct pccbb_softc *sc) { u_int32_t psr; /* socket present-state reg */ bus_space_tag_t iot = sc->sc_base_memt; bus_space_handle_t ioh = sc->sc_base_memh; int vol = PCCARD_VCC_UKN; /* set 0 */ psr = bus_space_read_4(iot, ioh, CB_SOCKET_STAT); if (0x400u & psr) { vol |= PCCARD_VCC_5V; } if (0x800u & psr) { vol |= PCCARD_VCC_3V; } return vol; } STATIC int cbbprint(void *aux, const char *pcic) { #if 0 struct cbslot_attach_args *cba = aux; if (cba->cba_slot >= 0) { aprint_normal(" slot %d", cba->cba_slot); } #endif return UNCONF; } /* * STATIC int pccbb_cardenable(struct pccbb_softc *sc, int function) * This function enables and disables the card */ STATIC int pccbb_cardenable(struct pccbb_softc *sc, int function) { u_int32_t command = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG); DPRINTF(("pccbb_cardenable:")); switch (function) { case CARDBUS_IO_ENABLE: command |= PCI_COMMAND_IO_ENABLE; break; case CARDBUS_IO_DISABLE: command &= ~PCI_COMMAND_IO_ENABLE; break; case CARDBUS_MEM_ENABLE: command |= PCI_COMMAND_MEM_ENABLE; break; case CARDBUS_MEM_DISABLE: command &= ~PCI_COMMAND_MEM_ENABLE; break; case CARDBUS_BM_ENABLE: command |= PCI_COMMAND_MASTER_ENABLE; break; case CARDBUS_BM_DISABLE: command &= ~PCI_COMMAND_MASTER_ENABLE; break; default: return 0; } pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_COMMAND_STATUS_REG, command); DPRINTF((" command reg 0x%x\n", command)); return 1; } #if !rbus static int pccbb_io_open(cardbus_chipset_tag_t ct, int win, uint32_t start, uint32_t end) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; int basereg; int limitreg; if ((win < 0) || (win > 2)) { #if defined DIAGNOSTIC printf("cardbus_io_open: window out of range %d\n", win); #endif return 0; } basereg = win * 8 + PCI_CB_IOBASE0; limitreg = win * 8 + PCI_CB_IOLIMIT0; DPRINTF(("pccbb_io_open: 0x%x[0x%x] - 0x%x[0x%x]\n", start, basereg, end, limitreg)); pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, start); pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, end); return 1; } /* * int pccbb_io_close(cardbus_chipset_tag_t, int) */ static int pccbb_io_close(cardbus_chipset_tag_t ct, int win) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; int basereg; int limitreg; if ((win < 0) || (win > 2)) { #if defined DIAGNOSTIC printf("cardbus_io_close: window out of range %d\n", win); #endif return 0; } basereg = win * 8 + PCI_CB_IOBASE0; limitreg = win * 8 + PCI_CB_IOLIMIT0; pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, 0); pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, 0); return 1; } static int pccbb_mem_open(cardbus_chipset_tag_t ct, int win, uint32_t start, uint32_t end) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; int basereg; int limitreg; if ((win < 0) || (win > 2)) { #if defined DIAGNOSTIC printf("cardbus_mem_open: window out of range %d\n", win); #endif return 0; } basereg = win * 8 + PCI_CB_MEMBASE0; limitreg = win * 8 + PCI_CB_MEMLIMIT0; pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, start); pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, end); return 1; } static int pccbb_mem_close(cardbus_chipset_tag_t ct, int win) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; int basereg; int limitreg; if ((win < 0) || (win > 2)) { #if defined DIAGNOSTIC printf("cardbus_mem_close: window out of range %d\n", win); #endif return 0; } basereg = win * 8 + PCI_CB_MEMBASE0; limitreg = win * 8 + PCI_CB_MEMLIMIT0; pci_conf_write(sc->sc_pc, sc->sc_tag, basereg, 0); pci_conf_write(sc->sc_pc, sc->sc_tag, limitreg, 0); return 1; } #endif /* * static void *pccbb_cb_intr_establish(cardbus_chipset_tag_t ct, * int level, * int (* func)(void *), * void *arg) * * This function registers an interrupt handler at the bridge, in * order not to call the interrupt handlers of child devices when * a card-deletion interrupt occurs. * * The argument level is not used. */ static void * pccbb_cb_intr_establish(cardbus_chipset_tag_t ct, int level, int (*func)(void *), void *arg) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; return pccbb_intr_establish(sc, level, func, arg); } /* * static void *pccbb_cb_intr_disestablish(cardbus_chipset_tag_t ct, * void *ih) * * This function removes an interrupt handler pointed by ih. */ static void pccbb_cb_intr_disestablish(cardbus_chipset_tag_t ct, void *ih) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; pccbb_intr_disestablish(sc, ih); } void pccbb_intr_route(struct pccbb_softc *sc) { pcireg_t bcr, cbctrl; /* initialize bridge intr routing */ bcr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_BRIDGE_CONTROL_REG); bcr &= ~CB_BCR_INTR_IREQ_ENABLE; pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_BRIDGE_CONTROL_REG, bcr); switch (sc->sc_chipset) { case CB_TI113X: cbctrl = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CBCTRL); /* functional intr enabled */ cbctrl |= PCI113X_CBCTRL_PCI_INTR; pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_CBCTRL, cbctrl); break; default: break; } } /* * static void *pccbb_intr_establish(struct pccbb_softc *sc, * int irq, * int level, * int (* func)(void *), * void *arg) * * This function registers an interrupt handler at the bridge, in * order not to call the interrupt handlers of child devices when * a card-deletion interrupt occurs. * */ static void * pccbb_intr_establish(struct pccbb_softc *sc, int level, int (*func)(void *), void *arg) { struct pccbb_intrhand_list *pil, *newpil; DPRINTF(("pccbb_intr_establish start. %p\n", LIST_FIRST(&sc->sc_pil))); if (LIST_EMPTY(&sc->sc_pil)) { pccbb_intr_route(sc); } /* * Allocate a room for interrupt handler structure. */ if (NULL == (newpil = (struct pccbb_intrhand_list *)malloc(sizeof(struct pccbb_intrhand_list), M_DEVBUF, M_WAITOK))) { return NULL; } newpil->pil_func = func; newpil->pil_arg = arg; newpil->pil_icookie = makeiplcookie(level); if (LIST_EMPTY(&sc->sc_pil)) { LIST_INSERT_HEAD(&sc->sc_pil, newpil, pil_next); } else { for (pil = LIST_FIRST(&sc->sc_pil); LIST_NEXT(pil, pil_next) != NULL; pil = LIST_NEXT(pil, pil_next)); LIST_INSERT_AFTER(pil, newpil, pil_next); } DPRINTF(("pccbb_intr_establish add pil. %p\n", LIST_FIRST(&sc->sc_pil))); return newpil; } /* * static void *pccbb_intr_disestablish(struct pccbb_softc *sc, * void *ih) * * This function removes an interrupt handler pointed by ih. ih * should be the value returned by cardbus_intr_establish() or * NULL. * * When ih is NULL, this function will do nothing. */ static void pccbb_intr_disestablish(struct pccbb_softc *sc, void *ih) { struct pccbb_intrhand_list *pil; pcireg_t reg; DPRINTF(("pccbb_intr_disestablish start. %p\n", LIST_FIRST(&sc->sc_pil))); if (ih == NULL) { /* intr handler is not set */ DPRINTF(("pccbb_intr_disestablish: no ih\n")); return; } #ifdef DIAGNOSTIC LIST_FOREACH(pil, &sc->sc_pil, pil_next) { DPRINTF(("pccbb_intr_disestablish: pil %p\n", pil)); if (pil == ih) { DPRINTF(("pccbb_intr_disestablish frees one pil\n")); break; } } if (pil == NULL) { panic("pccbb_intr_disestablish: %s cannot find pil %p", device_xname(sc->sc_dev), ih); } #endif pil = (struct pccbb_intrhand_list *)ih; LIST_REMOVE(pil, pil_next); free(pil, M_DEVBUF); DPRINTF(("pccbb_intr_disestablish frees one pil\n")); if (LIST_EMPTY(&sc->sc_pil)) { /* No interrupt handlers */ DPRINTF(("pccbb_intr_disestablish: no interrupt handler\n")); /* stop routing PCI intr */ reg = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_BRIDGE_CONTROL_REG); reg |= CB_BCR_INTR_IREQ_ENABLE; pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_BRIDGE_CONTROL_REG, reg); switch (sc->sc_chipset) { case CB_TI113X: reg = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CBCTRL); /* functional intr disabled */ reg &= ~PCI113X_CBCTRL_PCI_INTR; pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_CBCTRL, reg); break; default: break; } } } #if defined SHOW_REGS static void cb_show_regs(pci_chipset_tag_t pc, pcitag_t tag, bus_space_tag_t memt, bus_space_handle_t memh) { int i; printf("PCI config regs:"); for (i = 0; i < 0x50; i += 4) { if (i % 16 == 0) printf("\n 0x%02x:", i); printf(" %08x", pci_conf_read(pc, tag, i)); } for (i = 0x80; i < 0xb0; i += 4) { if (i % 16 == 0) printf("\n 0x%02x:", i); printf(" %08x", pci_conf_read(pc, tag, i)); } if (memh == 0) { printf("\n"); return; } printf("\nsocket regs:"); for (i = 0; i <= 0x10; i += 0x04) printf(" %08x", bus_space_read_4(memt, memh, i)); printf("\nExCA regs:"); for (i = 0; i < 0x08; ++i) printf(" %02x", bus_space_read_1(memt, memh, 0x800 + i)); printf("\n"); return; } #endif /* * static pcitag_t pccbb_make_tag(cardbus_chipset_tag_t cc, * int busno, int function) * This is the function to make a tag to access config space of * a CardBus Card. It works same as pci_conf_read. */ static pcitag_t pccbb_make_tag(cardbus_chipset_tag_t cc, int busno, int function) { struct pccbb_softc *sc = (struct pccbb_softc *)cc; return pci_make_tag(sc->sc_pc, busno, 0, function); } /* * pccbb_conf_read * * This is the function to read the config space of a CardBus card. * It works the same as pci_conf_read(9). */ static pcireg_t pccbb_conf_read(cardbus_chipset_tag_t cc, pcitag_t tag, int offset) { struct pccbb_softc *sc = (struct pccbb_softc *)cc; pcitag_t brtag = sc->sc_tag; pcireg_t reg; /* * clear cardbus master abort status; it is OK to write without * reading before because all bits are r/o or w1tc */ pci_conf_write(sc->sc_pc, brtag, PCI_CBB_SECSTATUS, CBB_SECSTATUS_CBMABORT); reg = pci_conf_read(sc->sc_pc, tag, offset); /* check cardbus master abort status */ if (pci_conf_read(sc->sc_pc, brtag, PCI_CBB_SECSTATUS) & CBB_SECSTATUS_CBMABORT) return (0xffffffff); return reg; } /* * pccbb_conf_write * * This is the function to write the config space of a CardBus * card. It works the same as pci_conf_write(9). */ static void pccbb_conf_write(cardbus_chipset_tag_t cc, pcitag_t tag, int reg, pcireg_t val) { struct pccbb_softc *sc = (struct pccbb_softc *)cc; pci_conf_write(sc->sc_pc, tag, reg, val); } #if 0 STATIC int pccbb_new_pcmcia_io_alloc(pcmcia_chipset_handle_t pch, bus_addr_t start, bus_size_t size, bus_size_t align, bus_addr_t mask, int speed, int flags, bus_space_handle_t * iohp) #endif /* * STATIC int pccbb_pcmcia_io_alloc(pcmcia_chipset_handle_t pch, * bus_addr_t start, bus_size_t size, * bus_size_t align, * struct pcmcia_io_handle *pcihp * * This function only allocates I/O region for pccard. This function * never maps the allocated region to pccard I/O area. * * XXX: The interface of this function is not very good, I believe. */ STATIC int pccbb_pcmcia_io_alloc(pcmcia_chipset_handle_t pch, bus_addr_t start, bus_size_t size, bus_size_t align, struct pcmcia_io_handle *pcihp) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; bus_addr_t ioaddr; int flags = 0; bus_space_tag_t iot; bus_space_handle_t ioh; bus_addr_t mask; #if rbus rbus_tag_t rb; #endif if (align == 0) { align = size; /* XXX: funny??? */ } if (start != 0) { /* XXX: assume all card decode lower 10 bits by its hardware */ mask = 0x3ff; /* enforce to use only masked address */ start &= mask; } else { /* * calculate mask: * 1. get the most significant bit of size (call it msb). * 2. compare msb with the value of size. * 3. if size is larger, shift msb left once. * 4. obtain mask value to decrement msb. */ bus_size_t size_tmp = size; int shifts = 0; mask = 1; while (size_tmp) { ++shifts; size_tmp >>= 1; } mask = (1 << shifts); if (mask < size) { mask <<= 1; } --mask; } /* * Allocate some arbitrary I/O space. */ iot = sc->sc_iot; #if rbus rb = sc->sc_rbus_iot; if (rbus_space_alloc(rb, start, size, mask, align, 0, &ioaddr, &ioh)) { return 1; } DPRINTF(("pccbb_pcmcia_io_alloc alloc port 0x%lx+0x%lx\n", (u_long) ioaddr, (u_long) size)); #else if (start) { ioaddr = start; if (bus_space_map(iot, start, size, 0, &ioh)) { return 1; } DPRINTF(("pccbb_pcmcia_io_alloc map port 0x%lx+0x%lx\n", (u_long) ioaddr, (u_long) size)); } else { flags |= PCMCIA_IO_ALLOCATED; if (bus_space_alloc(iot, 0x700 /* ph->sc->sc_iobase */ , 0x800, /* ph->sc->sc_iobase + ph->sc->sc_iosize */ size, align, 0, 0, &ioaddr, &ioh)) { /* No room be able to be get. */ return 1; } DPRINTF(("pccbb_pcmmcia_io_alloc alloc port 0x%lx+0x%lx\n", (u_long) ioaddr, (u_long) size)); } #endif pcihp->iot = iot; pcihp->ioh = ioh; pcihp->addr = ioaddr; pcihp->size = size; pcihp->flags = flags; return 0; } /* * STATIC int pccbb_pcmcia_io_free(pcmcia_chipset_handle_t pch, * struct pcmcia_io_handle *pcihp) * * This function only frees I/O region for pccard. * * XXX: The interface of this function is not very good, I believe. */ void pccbb_pcmcia_io_free(pcmcia_chipset_handle_t pch, struct pcmcia_io_handle *pcihp) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; #if !rbus bus_space_tag_t iot = pcihp->iot; #endif bus_space_handle_t ioh = pcihp->ioh; bus_size_t size = pcihp->size; #if rbus rbus_tag_t rb = sc->sc_rbus_iot; rbus_space_free(rb, ioh, size, NULL); #else if (pcihp->flags & PCMCIA_IO_ALLOCATED) bus_space_free(iot, ioh, size); else bus_space_unmap(iot, ioh, size); #endif } /* * STATIC int pccbb_pcmcia_io_map(pcmcia_chipset_handle_t pch, int width, * bus_addr_t offset, bus_size_t size, * struct pcmcia_io_handle *pcihp, * int *windowp) * * This function maps the allocated I/O region to pccard. This function * never allocates any I/O region for pccard I/O area. I don't * understand why the original authors of pcmciabus separated alloc and * map. I believe the two must be unite. * * XXX: no wait timing control? */ int pccbb_pcmcia_io_map(pcmcia_chipset_handle_t pch, int width, bus_addr_t offset, bus_size_t size, struct pcmcia_io_handle *pcihp, int *windowp) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; struct pcic_handle *ph = &sc->sc_pcmcia_h; bus_addr_t ioaddr = pcihp->addr + offset; int i, win; #if defined CBB_DEBUG static const char *width_names[] = { "dynamic", "io8", "io16" }; #endif /* Sanity check I/O handle. */ if (!bus_space_is_equal(sc->sc_iot, pcihp->iot)) { panic("pccbb_pcmcia_io_map iot is bogus"); } /* XXX Sanity check offset/size. */ win = -1; for (i = 0; i < PCIC_IO_WINS; i++) { if ((ph->ioalloc & (1 << i)) == 0) { win = i; ph->ioalloc |= (1 << i); break; } } if (win == -1) { return 1; } *windowp = win; /* XXX this is pretty gross */ DPRINTF(("pccbb_pcmcia_io_map window %d %s port %lx+%lx\n", win, width_names[width], (u_long) ioaddr, (u_long) size)); /* XXX wtf is this doing here? */ #if 0 printf(" port 0x%lx", (u_long) ioaddr); if (size > 1) { printf("-0x%lx", (u_long) ioaddr + (u_long) size - 1); } #endif ph->io[win].addr = ioaddr; ph->io[win].size = size; ph->io[win].width = width; /* actual dirty register-value changing in the function below. */ pccbb_pcmcia_do_io_map(sc, win); return 0; } /* * STATIC void pccbb_pcmcia_do_io_map(struct pcic_handle *h, int win) * * This function changes register-value to map I/O region for pccard. */ static void pccbb_pcmcia_do_io_map(struct pccbb_softc *sc, int win) { static u_int8_t pcic_iowidth[3] = { PCIC_IOCTL_IO0_IOCS16SRC_CARD, PCIC_IOCTL_IO0_IOCS16SRC_DATASIZE | PCIC_IOCTL_IO0_DATASIZE_8BIT, PCIC_IOCTL_IO0_IOCS16SRC_DATASIZE | PCIC_IOCTL_IO0_DATASIZE_16BIT, }; #define PCIC_SIA_START_LOW 0 #define PCIC_SIA_START_HIGH 1 #define PCIC_SIA_STOP_LOW 2 #define PCIC_SIA_STOP_HIGH 3 int regbase_win = 0x8 + win * 0x04; u_int8_t ioctl, enable; struct pcic_handle *ph = &sc->sc_pcmcia_h; DPRINTF(("pccbb_pcmcia_do_io_map win %d addr 0x%lx size 0x%lx " "width %d\n", win, (unsigned long)ph->io[win].addr, (unsigned long)ph->io[win].size, ph->io[win].width * 8)); Pcic_write(sc, regbase_win + PCIC_SIA_START_LOW, ph->io[win].addr & 0xff); Pcic_write(sc, regbase_win + PCIC_SIA_START_HIGH, (ph->io[win].addr >> 8) & 0xff); Pcic_write(sc, regbase_win + PCIC_SIA_STOP_LOW, (ph->io[win].addr + ph->io[win].size - 1) & 0xff); Pcic_write(sc, regbase_win + PCIC_SIA_STOP_HIGH, ((ph->io[win].addr + ph->io[win].size - 1) >> 8) & 0xff); ioctl = Pcic_read(sc, PCIC_IOCTL); enable = Pcic_read(sc, PCIC_ADDRWIN_ENABLE); switch (win) { case 0: ioctl &= ~(PCIC_IOCTL_IO0_WAITSTATE | PCIC_IOCTL_IO0_ZEROWAIT | PCIC_IOCTL_IO0_IOCS16SRC_MASK | PCIC_IOCTL_IO0_DATASIZE_MASK); ioctl |= pcic_iowidth[ph->io[win].width]; enable |= PCIC_ADDRWIN_ENABLE_IO0; break; case 1: ioctl &= ~(PCIC_IOCTL_IO1_WAITSTATE | PCIC_IOCTL_IO1_ZEROWAIT | PCIC_IOCTL_IO1_IOCS16SRC_MASK | PCIC_IOCTL_IO1_DATASIZE_MASK); ioctl |= (pcic_iowidth[ph->io[win].width] << 4); enable |= PCIC_ADDRWIN_ENABLE_IO1; break; } Pcic_write(sc, PCIC_IOCTL, ioctl); Pcic_write(sc, PCIC_ADDRWIN_ENABLE, enable); #if defined(CBB_DEBUG) { u_int8_t start_low = Pcic_read(sc, regbase_win + PCIC_SIA_START_LOW); u_int8_t start_high = Pcic_read(sc, regbase_win + PCIC_SIA_START_HIGH); u_int8_t stop_low = Pcic_read(sc, regbase_win + PCIC_SIA_STOP_LOW); u_int8_t stop_high = Pcic_read(sc, regbase_win + PCIC_SIA_STOP_HIGH); printf("pccbb_pcmcia_do_io_map start %02x %02x, " "stop %02x %02x, ioctl %02x enable %02x\n", start_low, start_high, stop_low, stop_high, ioctl, enable); } #endif } /* * STATIC void pccbb_pcmcia_io_unmap(pcmcia_chipset_handle_t *h, int win) * * This function unmaps I/O region. No return value. */ STATIC void pccbb_pcmcia_io_unmap(pcmcia_chipset_handle_t pch, int win) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; struct pcic_handle *ph = &sc->sc_pcmcia_h; int reg; if (win >= PCIC_IO_WINS || win < 0) { panic("pccbb_pcmcia_io_unmap: window out of range"); } reg = Pcic_read(sc, PCIC_ADDRWIN_ENABLE); switch (win) { case 0: reg &= ~PCIC_ADDRWIN_ENABLE_IO0; break; case 1: reg &= ~PCIC_ADDRWIN_ENABLE_IO1; break; } Pcic_write(sc, PCIC_ADDRWIN_ENABLE, reg); ph->ioalloc &= ~(1 << win); } static int pccbb_pcmcia_wait_ready(struct pccbb_softc *sc) { u_int8_t stat; int i; /* wait an initial 10ms for quick cards */ stat = Pcic_read(sc, PCIC_IF_STATUS); if (stat & PCIC_IF_STATUS_READY) return (0); pccbb_pcmcia_delay(sc, 10, "pccwr0"); for (i = 0; i < 50; i++) { stat = Pcic_read(sc, PCIC_IF_STATUS); if (stat & PCIC_IF_STATUS_READY) return (0); if ((stat & PCIC_IF_STATUS_CARDDETECT_MASK) != PCIC_IF_STATUS_CARDDETECT_PRESENT) return (ENXIO); /* wait .1s (100ms) each iteration now */ pccbb_pcmcia_delay(sc, 100, "pccwr1"); } printf("pccbb_pcmcia_wait_ready: ready never happened, status=%02x\n", stat); return (EWOULDBLOCK); } /* * Perform long (msec order) delay. timo is in milliseconds. */ static void pccbb_pcmcia_delay(struct pccbb_softc *sc, int timo, const char *wmesg) { #ifdef DIAGNOSTIC if (timo <= 0) panic("pccbb_pcmcia_delay: called with timeout %d", timo); if (!curlwp) panic("pccbb_pcmcia_delay: called in interrupt context"); #endif DPRINTF(("pccbb_pcmcia_delay: \"%s\", sleep %d ms\n", wmesg, timo)); kpause(wmesg, false, max(mstohz(timo), 1), NULL); } /* * STATIC void pccbb_pcmcia_socket_enable(pcmcia_chipset_handle_t pch) * * This function enables the card. All information is stored in * the first argument, pcmcia_chipset_handle_t. */ STATIC void pccbb_pcmcia_socket_enable(pcmcia_chipset_handle_t pch) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; struct pcic_handle *ph = &sc->sc_pcmcia_h; pcireg_t spsr; int voltage; int win; u_int8_t power, intr; #ifdef DIAGNOSTIC int reg; #endif /* this bit is mostly stolen from pcic_attach_card */ DPRINTF(("pccbb_pcmcia_socket_enable: ")); /* get card Vcc info */ spsr = bus_space_read_4(sc->sc_base_memt, sc->sc_base_memh, CB_SOCKET_STAT); if (spsr & CB_SOCKET_STAT_5VCARD) { DPRINTF(("5V card\n")); voltage = CARDBUS_VCC_5V | CARDBUS_VPP_VCC; } else if (spsr & CB_SOCKET_STAT_3VCARD) { DPRINTF(("3V card\n")); voltage = CARDBUS_VCC_3V | CARDBUS_VPP_VCC; } else { DPRINTF(("?V card, 0x%x\n", spsr)); /* XXX */ return; } /* disable interrupts; assert RESET */ intr = Pcic_read(sc, PCIC_INTR); intr &= PCIC_INTR_ENABLE; Pcic_write(sc, PCIC_INTR, intr); /* zero out the address windows */ Pcic_write(sc, PCIC_ADDRWIN_ENABLE, 0); /* power down the socket to reset it, clear the card reset pin */ pccbb_power(sc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); /* power off; assert output enable bit */ power = PCIC_PWRCTL_OE; Pcic_write(sc, PCIC_PWRCTL, power); /* power up the socket */ if (pccbb_power(sc, voltage) == 0) return; /* * Table 4-18 and figure 4-6 of the PC Card specifiction say: * Vcc Rising Time (Tpr) = 100ms (handled in pccbb_power() above) * RESET Width (Th (Hi-z RESET)) = 1ms * RESET Width (Tw (RESET)) = 10us * * some machines require some more time to be settled * for example old toshiba topic bridges! * (100ms is added here). */ pccbb_pcmcia_delay(sc, 200 + 1, "pccen1"); /* negate RESET */ intr |= PCIC_INTR_RESET; Pcic_write(sc, PCIC_INTR, intr); /* * RESET Setup Time (Tsu (RESET)) = 20ms */ pccbb_pcmcia_delay(sc, 20, "pccen2"); #ifdef DIAGNOSTIC reg = Pcic_read(sc, PCIC_IF_STATUS); if ((reg & PCIC_IF_STATUS_POWERACTIVE) == 0) printf("pccbb_pcmcia_socket_enable: no power, status=%x\n", reg); #endif /* wait for the chip to finish initializing */ if (pccbb_pcmcia_wait_ready(sc)) { #ifdef DIAGNOSTIC printf("pccbb_pcmcia_socket_enable: never became ready\n"); #endif /* XXX return a failure status?? */ pccbb_power(sc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); Pcic_write(sc, PCIC_PWRCTL, 0); return; } /* reinstall all the memory and io mappings */ for (win = 0; win < PCIC_MEM_WINS; ++win) if (ph->memalloc & (1 << win)) pccbb_pcmcia_do_mem_map(sc, win); for (win = 0; win < PCIC_IO_WINS; ++win) if (ph->ioalloc & (1 << win)) pccbb_pcmcia_do_io_map(sc, win); } /* * STATIC void pccbb_pcmcia_socket_disable(pcmcia_chipset_handle_t *ph) * * This function disables the card. All information is stored in * the first argument, pcmcia_chipset_handle_t. */ STATIC void pccbb_pcmcia_socket_disable(pcmcia_chipset_handle_t pch) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; u_int8_t intr; DPRINTF(("pccbb_pcmcia_socket_disable\n")); /* disable interrupts; assert RESET */ intr = Pcic_read(sc, PCIC_INTR); intr &= PCIC_INTR_ENABLE; Pcic_write(sc, PCIC_INTR, intr); /* zero out the address windows */ Pcic_write(sc, PCIC_ADDRWIN_ENABLE, 0); /* power down the socket to reset it, clear the card reset pin */ pccbb_power(sc, CARDBUS_VCC_0V | CARDBUS_VPP_0V); /* disable socket: negate output enable bit and power off */ Pcic_write(sc, PCIC_PWRCTL, 0); /* * Vcc Falling Time (Tpf) = 300ms */ pccbb_pcmcia_delay(sc, 300, "pccwr1"); } STATIC void pccbb_pcmcia_socket_settype(pcmcia_chipset_handle_t pch, int type) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; u_int8_t intr; /* set the card type */ intr = Pcic_read(sc, PCIC_INTR); intr &= ~(PCIC_INTR_IRQ_MASK | PCIC_INTR_CARDTYPE_MASK); if (type == PCMCIA_IFTYPE_IO) intr |= PCIC_INTR_CARDTYPE_IO; else intr |= PCIC_INTR_CARDTYPE_MEM; Pcic_write(sc, PCIC_INTR, intr); DPRINTF(("%s: pccbb_pcmcia_socket_settype type %s %02x\n", device_xname(sc->sc_dev), ((type == PCMCIA_IFTYPE_IO) ? "io" : "mem"), intr)); } /* * STATIC int pccbb_pcmcia_card_detect(pcmcia_chipset_handle_t *ph) * * This function detects whether a card is in the slot or not. * If a card is inserted, return 1. Otherwise, return 0. */ STATIC int pccbb_pcmcia_card_detect(pcmcia_chipset_handle_t pch) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; DPRINTF(("pccbb_pcmcia_card_detect\n")); return pccbb_detect_card(sc) == 1 ? 1 : 0; } #if 0 STATIC int pccbb_new_pcmcia_mem_alloc(pcmcia_chipset_handle_t pch, bus_addr_t start, bus_size_t size, bus_size_t align, int speed, int flags, bus_space_tag_t * memtp bus_space_handle_t * memhp) #endif /* * STATIC int pccbb_pcmcia_mem_alloc(pcmcia_chipset_handle_t pch, * bus_size_t size, * struct pcmcia_mem_handle *pcmhp) * * This function only allocates memory region for pccard. This * function never maps the allocated region to pccard memory area. * * XXX: Why the argument of start address is not in? */ STATIC int pccbb_pcmcia_mem_alloc(pcmcia_chipset_handle_t pch, bus_size_t size, struct pcmcia_mem_handle *pcmhp) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; bus_space_handle_t memh; bus_addr_t addr; bus_size_t sizepg; #if rbus rbus_tag_t rb; #endif /* Check that the card is still there. */ if ((Pcic_read(sc, PCIC_IF_STATUS) & PCIC_IF_STATUS_CARDDETECT_MASK) != PCIC_IF_STATUS_CARDDETECT_PRESENT) return 1; /* out of sc->memh, allocate as many pages as necessary */ /* convert size to PCIC pages */ /* * This is not enough; when the requested region is on the page * boundaries, this may calculate wrong result. */ sizepg = (size + (PCIC_MEM_PAGESIZE - 1)) / PCIC_MEM_PAGESIZE; #if 0 if (sizepg > PCIC_MAX_MEM_PAGES) { return 1; } #endif if (!(sc->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32)) { return 1; } addr = 0; /* XXX gcc -Wuninitialized */ #if rbus rb = sc->sc_rbus_memt; if (rbus_space_alloc(rb, 0, sizepg * PCIC_MEM_PAGESIZE, sizepg * PCIC_MEM_PAGESIZE - 1, PCIC_MEM_PAGESIZE, 0, &addr, &memh)) { return 1; } #else if (bus_space_alloc(sc->sc_memt, sc->sc_mem_start, sc->sc_mem_end, sizepg * PCIC_MEM_PAGESIZE, PCIC_MEM_PAGESIZE, 0, /* boundary */ 0, /* flags */ &addr, &memh)) { return 1; } #endif DPRINTF(("pccbb_pcmcia_alloc_mem: addr 0x%lx size 0x%lx, " "realsize 0x%lx\n", (unsigned long)addr, (unsigned long)size, (unsigned long)sizepg * PCIC_MEM_PAGESIZE)); pcmhp->memt = sc->sc_memt; pcmhp->memh = memh; pcmhp->addr = addr; pcmhp->size = size; pcmhp->realsize = sizepg * PCIC_MEM_PAGESIZE; /* What is mhandle? I feel it is very dirty and it must go trush. */ pcmhp->mhandle = 0; /* No offset??? Funny. */ return 0; } /* * STATIC void pccbb_pcmcia_mem_free(pcmcia_chipset_handle_t pch, * struct pcmcia_mem_handle *pcmhp) * * This function release the memory space allocated by the function * pccbb_pcmcia_mem_alloc(). */ STATIC void pccbb_pcmcia_mem_free(pcmcia_chipset_handle_t pch, struct pcmcia_mem_handle *pcmhp) { #if rbus struct pccbb_softc *sc = (struct pccbb_softc *)pch; rbus_space_free(sc->sc_rbus_memt, pcmhp->memh, pcmhp->realsize, NULL); #else bus_space_free(pcmhp->memt, pcmhp->memh, pcmhp->realsize); #endif } /* * STATIC void pccbb_pcmcia_do_mem_map(struct pcic_handle *ph, int win) * * This function release the memory space allocated by the function * pccbb_pcmcia_mem_alloc(). */ STATIC void pccbb_pcmcia_do_mem_map(struct pccbb_softc *sc, int win) { int regbase_win; bus_addr_t phys_addr; bus_addr_t phys_end; struct pcic_handle *ph = &sc->sc_pcmcia_h; #define PCIC_SMM_START_LOW 0 #define PCIC_SMM_START_HIGH 1 #define PCIC_SMM_STOP_LOW 2 #define PCIC_SMM_STOP_HIGH 3 #define PCIC_CMA_LOW 4 #define PCIC_CMA_HIGH 5 u_int8_t start_low, start_high = 0; u_int8_t stop_low, stop_high; u_int8_t off_low, off_high; u_int8_t mem_window; int reg; int kind = ph->mem[win].kind & ~PCMCIA_WIDTH_MEM_MASK; int mem8 = (ph->mem[win].kind & PCMCIA_WIDTH_MEM_MASK) == PCMCIA_WIDTH_MEM8 || (kind == PCMCIA_MEM_ATTR); regbase_win = 0x10 + win * 0x08; phys_addr = ph->mem[win].addr; phys_end = phys_addr + ph->mem[win].size; DPRINTF(("pccbb_pcmcia_do_mem_map: start 0x%lx end 0x%lx off 0x%lx\n", (unsigned long)phys_addr, (unsigned long)phys_end, (unsigned long)ph->mem[win].offset)); #define PCIC_MEMREG_LSB_SHIFT PCIC_SYSMEM_ADDRX_SHIFT #define PCIC_MEMREG_MSB_SHIFT (PCIC_SYSMEM_ADDRX_SHIFT + 8) #define PCIC_MEMREG_WIN_SHIFT (PCIC_SYSMEM_ADDRX_SHIFT + 12) /* bit 19:12 */ start_low = (phys_addr >> PCIC_MEMREG_LSB_SHIFT) & 0xff; /* bit 23:20 and bit 7 on */ start_high = ((phys_addr >> PCIC_MEMREG_MSB_SHIFT) & 0x0f) |(mem8 ? 0 : PCIC_SYSMEM_ADDRX_START_MSB_DATASIZE_16BIT); /* bit 31:24, for 32-bit address */ mem_window = (phys_addr >> PCIC_MEMREG_WIN_SHIFT) & 0xff; Pcic_write(sc, regbase_win + PCIC_SMM_START_LOW, start_low); Pcic_write(sc, regbase_win + PCIC_SMM_START_HIGH, start_high); if (sc->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32) { Pcic_write(sc, 0x40 + win, mem_window); } stop_low = (phys_end >> PCIC_MEMREG_LSB_SHIFT) & 0xff; stop_high = ((phys_end >> PCIC_MEMREG_MSB_SHIFT) & 0x0f) | PCIC_SYSMEM_ADDRX_STOP_MSB_WAIT2; /* wait 2 cycles */ /* XXX Geee, WAIT2!! Crazy!! I must rewrite this routine. */ Pcic_write(sc, regbase_win + PCIC_SMM_STOP_LOW, stop_low); Pcic_write(sc, regbase_win + PCIC_SMM_STOP_HIGH, stop_high); off_low = (ph->mem[win].offset >> PCIC_CARDMEM_ADDRX_SHIFT) & 0xff; off_high = ((ph->mem[win].offset >> (PCIC_CARDMEM_ADDRX_SHIFT + 8)) & PCIC_CARDMEM_ADDRX_MSB_ADDR_MASK) | ((kind == PCMCIA_MEM_ATTR) ? PCIC_CARDMEM_ADDRX_MSB_REGACTIVE_ATTR : 0); Pcic_write(sc, regbase_win + PCIC_CMA_LOW, off_low); Pcic_write(sc, regbase_win + PCIC_CMA_HIGH, off_high); reg = Pcic_read(sc, PCIC_ADDRWIN_ENABLE); reg |= ((1 << win) | PCIC_ADDRWIN_ENABLE_MEMCS16); Pcic_write(sc, PCIC_ADDRWIN_ENABLE, reg); #if defined(CBB_DEBUG) { int r1, r2, r3, r4, r5, r6, r7 = 0; r1 = Pcic_read(sc, regbase_win + PCIC_SMM_START_LOW); r2 = Pcic_read(sc, regbase_win + PCIC_SMM_START_HIGH); r3 = Pcic_read(sc, regbase_win + PCIC_SMM_STOP_LOW); r4 = Pcic_read(sc, regbase_win + PCIC_SMM_STOP_HIGH); r5 = Pcic_read(sc, regbase_win + PCIC_CMA_LOW); r6 = Pcic_read(sc, regbase_win + PCIC_CMA_HIGH); if (sc->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32) { r7 = Pcic_read(sc, 0x40 + win); } printf("pccbb_pcmcia_do_mem_map window %d: %02x%02x %02x%02x " "%02x%02x", win, r1, r2, r3, r4, r5, r6); if (sc->sc_pcmcia_flags & PCCBB_PCMCIA_MEM_32) { printf(" %02x", r7); } printf("\n"); } #endif } /* * STATIC int pccbb_pcmcia_mem_map(pcmcia_chipset_handle_t pch, int kind, * bus_addr_t card_addr, bus_size_t size, * struct pcmcia_mem_handle *pcmhp, * bus_addr_t *offsetp, int *windowp) * * This function maps memory space allocated by the function * pccbb_pcmcia_mem_alloc(). */ STATIC int pccbb_pcmcia_mem_map(pcmcia_chipset_handle_t pch, int kind, bus_addr_t card_addr, bus_size_t size, struct pcmcia_mem_handle *pcmhp, bus_size_t *offsetp, int *windowp) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; struct pcic_handle *ph = &sc->sc_pcmcia_h; bus_addr_t busaddr; long card_offset; int win; /* Check that the card is still there. */ if ((Pcic_read(sc, PCIC_IF_STATUS) & PCIC_IF_STATUS_CARDDETECT_MASK) != PCIC_IF_STATUS_CARDDETECT_PRESENT) return 1; for (win = 0; win < PCIC_MEM_WINS; ++win) { if ((ph->memalloc & (1 << win)) == 0) { ph->memalloc |= (1 << win); break; } } if (win == PCIC_MEM_WINS) { return 1; } *windowp = win; /* XXX this is pretty gross */ if (!bus_space_is_equal(sc->sc_memt, pcmhp->memt)) { panic("pccbb_pcmcia_mem_map memt is bogus"); } busaddr = pcmhp->addr; /* * compute the address offset to the pcmcia address space for the * pcic. this is intentionally signed. The masks and shifts below * will cause TRT to happen in the pcic registers. Deal with making * sure the address is aligned, and return the alignment offset. */ *offsetp = card_addr % PCIC_MEM_PAGESIZE; card_addr -= *offsetp; DPRINTF(("pccbb_pcmcia_mem_map window %d bus %lx+%lx+%lx at card addr " "%lx\n", win, (u_long) busaddr, (u_long) * offsetp, (u_long) size, (u_long) card_addr)); /* * include the offset in the size, and decrement size by one, since * the hw wants start/stop */ size += *offsetp - 1; card_offset = (((long)card_addr) - ((long)busaddr)); ph->mem[win].addr = busaddr; ph->mem[win].size = size; ph->mem[win].offset = card_offset; ph->mem[win].kind = kind; pccbb_pcmcia_do_mem_map(sc, win); return 0; } /* * STATIC int pccbb_pcmcia_mem_unmap(pcmcia_chipset_handle_t pch, * int window) * * This function unmaps memory space which mapped by the function * pccbb_pcmcia_mem_map(). */ STATIC void pccbb_pcmcia_mem_unmap(pcmcia_chipset_handle_t pch, int window) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; struct pcic_handle *ph = &sc->sc_pcmcia_h; int reg; if (window >= PCIC_MEM_WINS) { panic("pccbb_pcmcia_mem_unmap: window out of range"); } reg = Pcic_read(sc, PCIC_ADDRWIN_ENABLE); reg &= ~(1 << window); Pcic_write(sc, PCIC_ADDRWIN_ENABLE, reg); ph->memalloc &= ~(1 << window); } /* * STATIC void *pccbb_pcmcia_intr_establish(pcmcia_chipset_handle_t pch, * struct pcmcia_function *pf, * int ipl, * int (*func)(void *), * void *arg); * * This function enables PC-Card interrupt. PCCBB uses PCI interrupt line. */ STATIC void * pccbb_pcmcia_intr_establish(pcmcia_chipset_handle_t pch, struct pcmcia_function *pf, int ipl, int (*func)(void *), void *arg) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; if (!(pf->cfe->flags & PCMCIA_CFE_IRQLEVEL)) { /* what should I do? */ if ((pf->cfe->flags & PCMCIA_CFE_IRQLEVEL)) { DPRINTF(("%s does not provide edge nor pulse " "interrupt\n", device_xname(sc->sc_dev))); return NULL; } /* * XXX Noooooo! The interrupt flag must set properly!! * dumb pcmcia driver!! */ } return pccbb_intr_establish(sc, ipl, func, arg); } /* * STATIC void pccbb_pcmcia_intr_disestablish(pcmcia_chipset_handle_t pch, * void *ih) * * This function disables PC-Card interrupt. */ STATIC void pccbb_pcmcia_intr_disestablish(pcmcia_chipset_handle_t pch, void *ih) { struct pccbb_softc *sc = (struct pccbb_softc *)pch; pccbb_intr_disestablish(sc, ih); } #if rbus /* * static int * pccbb_rbus_cb_space_alloc(cardbus_chipset_tag_t ct, rbus_tag_t rb, * bus_addr_t addr, bus_size_t size, * bus_addr_t mask, bus_size_t align, * int flags, bus_addr_t *addrp; * bus_space_handle_t *bshp) * * This function allocates a portion of memory or io space for * clients. This function is called from CardBus card drivers. */ static int pccbb_rbus_cb_space_alloc(cardbus_chipset_tag_t ct, rbus_tag_t rb, bus_addr_t addr, bus_size_t size, bus_addr_t mask, bus_size_t align, int flags, bus_addr_t *addrp, bus_space_handle_t *bshp) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; DPRINTF(("pccbb_rbus_cb_space_alloc: addr 0x%lx, size 0x%lx, " "mask 0x%lx, align 0x%lx\n", (unsigned long)addr, (unsigned long)size, (unsigned long)mask, (unsigned long)align)); if (align == 0) { align = size; } if (bus_space_is_equal(rb->rb_bt, sc->sc_memt)) { if (align < 16) { return 1; } /* * XXX: align more than 0x1000 to avoid overwrapping * memory windows for two or more devices. 0x1000 * means memory window's granularity. * * Two or more devices should be able to share same * memory window region. However, overrapping memory * window is not good because some devices, such as * 3Com 3C575[BC], have a broken address decoder and * intrude other's memory region. */ if (align < 0x1000) { align = 0x1000; } } else if (bus_space_is_equal(rb->rb_bt, sc->sc_iot)) { if (align < 4) { return 1; } /* XXX: hack for avoiding ISA image */ if (mask < 0x0100) { mask = 0x3ff; addr = 0x300; } } else { DPRINTF(("pccbb_rbus_cb_space_alloc: Bus space tag 0x%lx is " "NOT used. io: 0x%lx, mem: 0x%lx\n", (unsigned long)rb->rb_bt, (unsigned long)sc->sc_iot, (unsigned long)sc->sc_memt)); return 1; /* XXX: panic here? */ } if (rbus_space_alloc(rb, addr, size, mask, align, flags, addrp, bshp)) { aprint_normal_dev(sc->sc_dev, " no bus space\n"); return 1; } pccbb_open_win(sc, rb->rb_bt, *addrp, size, *bshp, 0); return 0; } /* * static int * pccbb_rbus_cb_space_free(cardbus_chipset_tag_t *ct, rbus_tag_t rb, * bus_space_handle_t *bshp, bus_size_t size); * * This function is called from CardBus card drivers. */ static int pccbb_rbus_cb_space_free(cardbus_chipset_tag_t ct, rbus_tag_t rb, bus_space_handle_t bsh, bus_size_t size) { struct pccbb_softc *sc = (struct pccbb_softc *)ct; bus_space_tag_t bt = rb->rb_bt; pccbb_close_win(sc, bt, bsh, size); if (bus_space_is_equal(bt, sc->sc_memt)) { } else if (bus_space_is_equal(bt, sc->sc_iot)) { } else { return 1; /* XXX: panic here? */ } return rbus_space_free(rb, bsh, size, NULL); } #endif /* rbus */ #if rbus static int pccbb_open_win(struct pccbb_softc *sc, bus_space_tag_t bst, bus_addr_t addr, bus_size_t size, bus_space_handle_t bsh, int flags) { struct pccbb_win_chain_head *head; bus_addr_t align; head = &sc->sc_iowindow; align = 0x04; if (bus_space_is_equal(sc->sc_memt, bst)) { head = &sc->sc_memwindow; align = 0x1000; DPRINTF(("using memory window, 0x%lx 0x%lx 0x%lx\n\n", (unsigned long)sc->sc_iot, (unsigned long)sc->sc_memt, (unsigned long)bst)); } if (pccbb_winlist_insert(head, addr, size, bsh, flags)) { aprint_error_dev(sc->sc_dev, "pccbb_open_win: %s winlist insert failed\n", (head == &sc->sc_memwindow) ? "mem" : "io"); } pccbb_winset(align, sc, bst); return 0; } static int pccbb_close_win(struct pccbb_softc *sc, bus_space_tag_t bst, bus_space_handle_t bsh, bus_size_t size) { struct pccbb_win_chain_head *head; bus_addr_t align; head = &sc->sc_iowindow; align = 0x04; if (bus_space_is_equal(sc->sc_memt, bst)) { head = &sc->sc_memwindow; align = 0x1000; } if (pccbb_winlist_delete(head, bsh, size)) { aprint_error_dev(sc->sc_dev, "pccbb_close_win: %s winlist delete failed\n", (head == &sc->sc_memwindow) ? "mem" : "io"); } pccbb_winset(align, sc, bst); return 0; } static int pccbb_winlist_insert(struct pccbb_win_chain_head *head, bus_addr_t start, bus_size_t size, bus_space_handle_t bsh, int flags) { struct pccbb_win_chain *chainp, *elem; if ((elem = malloc(sizeof(struct pccbb_win_chain), M_DEVBUF, M_NOWAIT)) == NULL) return (1); /* fail */ elem->wc_start = start; elem->wc_end = start + (size - 1); elem->wc_handle = bsh; elem->wc_flags = flags; TAILQ_FOREACH(chainp, head, wc_list) { if (chainp->wc_end >= start) break; } if (chainp != NULL) TAILQ_INSERT_AFTER(head, chainp, elem, wc_list); else TAILQ_INSERT_TAIL(head, elem, wc_list); return (0); } static int pccbb_winlist_delete(struct pccbb_win_chain_head *head, bus_space_handle_t bsh, bus_size_t size) { struct pccbb_win_chain *chainp; TAILQ_FOREACH(chainp, head, wc_list) { if (memcmp(&chainp->wc_handle, &bsh, sizeof(bsh)) == 0) break; } if (chainp == NULL) return 1; /* fail: no candidate to remove */ if ((chainp->wc_end - chainp->wc_start) != (size - 1)) { printf("pccbb_winlist_delete: window 0x%lx size " "inconsistent: 0x%lx, 0x%lx\n", (unsigned long)chainp->wc_start, (unsigned long)(chainp->wc_end - chainp->wc_start), (unsigned long)(size - 1)); return 1; } TAILQ_REMOVE(head, chainp, wc_list); free(chainp, M_DEVBUF); return 0; } static void pccbb_winset(bus_addr_t align, struct pccbb_softc *sc, bus_space_tag_t bst) { pci_chipset_tag_t pc; pcitag_t tag; bus_addr_t mask = ~(align - 1); struct { pcireg_t win_start; pcireg_t win_limit; int win_flags; } win[2]; struct pccbb_win_chain *chainp; int offs; win[0].win_start = win[1].win_start = 0xffffffff; win[0].win_limit = win[1].win_limit = 0; win[0].win_flags = win[1].win_flags = 0; chainp = TAILQ_FIRST(&sc->sc_iowindow); offs = PCI_CB_IOBASE0; if (bus_space_is_equal(sc->sc_memt, bst)) { chainp = TAILQ_FIRST(&sc->sc_memwindow); offs = PCI_CB_MEMBASE0; } if (chainp != NULL) { win[0].win_start = chainp->wc_start & mask; win[0].win_limit = chainp->wc_end & mask; win[0].win_flags = chainp->wc_flags; chainp = TAILQ_NEXT(chainp, wc_list); } for (; chainp != NULL; chainp = TAILQ_NEXT(chainp, wc_list)) { if (win[1].win_start == 0xffffffff) { /* window 1 is not used */ if ((win[0].win_flags == chainp->wc_flags) && (win[0].win_limit + align >= (chainp->wc_start & mask))) { /* concatenate */ win[0].win_limit = chainp->wc_end & mask; } else { /* make new window */ win[1].win_start = chainp->wc_start & mask; win[1].win_limit = chainp->wc_end & mask; win[1].win_flags = chainp->wc_flags; } continue; } /* Both windows are engaged. */ if (win[0].win_flags == win[1].win_flags) { /* same flags */ if (win[0].win_flags == chainp->wc_flags) { if (win[1].win_start - (win[0].win_limit + align) < (chainp->wc_start & mask) - ((chainp->wc_end & mask) + align)) { /* * merge window 0 and 1, and set win1 * to chainp */ win[0].win_limit = win[1].win_limit; win[1].win_start = chainp->wc_start & mask; win[1].win_limit = chainp->wc_end & mask; } else { win[1].win_limit = chainp->wc_end & mask; } } else { /* different flags */ /* concatenate win0 and win1 */ win[0].win_limit = win[1].win_limit; /* allocate win[1] to new space */ win[1].win_start = chainp->wc_start & mask; win[1].win_limit = chainp->wc_end & mask; win[1].win_flags = chainp->wc_flags; } } else { /* the flags of win[0] and win[1] is different */ if (win[0].win_flags == chainp->wc_flags) { win[0].win_limit = chainp->wc_end & mask; /* * XXX this creates overlapping windows, so * what should the poor bridge do if one is * cachable, and the other is not? */ aprint_error_dev(sc->sc_dev, "overlapping windows\n"); } else { win[1].win_limit = chainp->wc_end & mask; } } } pc = sc->sc_pc; tag = sc->sc_tag; pci_conf_write(pc, tag, offs, win[0].win_start); pci_conf_write(pc, tag, offs + 4, win[0].win_limit); pci_conf_write(pc, tag, offs + 8, win[1].win_start); pci_conf_write(pc, tag, offs + 12, win[1].win_limit); DPRINTF(("--pccbb_winset: win0 [0x%lx, 0x%lx), win1 [0x%lx, 0x%lx)\n", (unsigned long)pci_conf_read(pc, tag, offs), (unsigned long)pci_conf_read(pc, tag, offs + 4) + align, (unsigned long)pci_conf_read(pc, tag, offs + 8), (unsigned long)pci_conf_read(pc, tag, offs + 12) + align)); if (bus_space_is_equal(bst, sc->sc_memt)) { pcireg_t bcr = pci_conf_read(pc, tag, PCI_BRIDGE_CONTROL_REG); bcr &= ~(CB_BCR_PREFETCH_MEMWIN0 | CB_BCR_PREFETCH_MEMWIN1); if (win[0].win_flags & PCCBB_MEM_CACHABLE) bcr |= CB_BCR_PREFETCH_MEMWIN0; if (win[1].win_flags & PCCBB_MEM_CACHABLE) bcr |= CB_BCR_PREFETCH_MEMWIN1; pci_conf_write(pc, tag, PCI_BRIDGE_CONTROL_REG, bcr); } } #endif /* rbus */ static bool pccbb_suspend(device_t dv, const pmf_qual_t *qual) { struct pccbb_softc *sc = device_private(dv); bus_space_tag_t base_memt = sc->sc_base_memt; /* socket regs memory */ bus_space_handle_t base_memh = sc->sc_base_memh; pcireg_t reg; if (sc->sc_pil_intr_enable) (void)pccbbintr_function(sc); sc->sc_pil_intr_enable = false; reg = bus_space_read_4(base_memt, base_memh, CB_SOCKET_MASK); /* Disable interrupts. */ reg &= ~(CB_SOCKET_MASK_CSTS | CB_SOCKET_MASK_CD | CB_SOCKET_MASK_POWER); bus_space_write_4(base_memt, base_memh, CB_SOCKET_MASK, reg); /* XXX joerg Disable power to the socket? */ /* XXX flush PCI write */ bus_space_read_4(base_memt, base_memh, CB_SOCKET_EVENT); /* reset interrupt */ bus_space_write_4(base_memt, base_memh, CB_SOCKET_EVENT, bus_space_read_4(base_memt, base_memh, CB_SOCKET_EVENT)); /* XXX flush PCI write */ bus_space_read_4(base_memt, base_memh, CB_SOCKET_EVENT); if (sc->sc_ih != NULL) { pci_intr_disestablish(sc->sc_pc, sc->sc_ih); sc->sc_ih = NULL; } return true; } static bool pccbb_resume(device_t dv, const pmf_qual_t *qual) { struct pccbb_softc *sc = device_private(dv); bus_space_tag_t base_memt = sc->sc_base_memt; /* socket regs memory */ bus_space_handle_t base_memh = sc->sc_base_memh; pcireg_t reg; pccbb_chipinit(sc); pccbb_intrinit(sc); /* setup memory and io space window for CB */ pccbb_winset(0x1000, sc, sc->sc_memt); pccbb_winset(0x04, sc, sc->sc_iot); /* CSC Interrupt: Card detect interrupt on */ reg = bus_space_read_4(base_memt, base_memh, CB_SOCKET_MASK); /* Card detect intr is turned on. */ reg |= CB_SOCKET_MASK_CSTS | CB_SOCKET_MASK_CD | CB_SOCKET_MASK_POWER; bus_space_write_4(base_memt, base_memh, CB_SOCKET_MASK, reg); /* reset interrupt */ reg = bus_space_read_4(base_memt, base_memh, CB_SOCKET_EVENT); bus_space_write_4(base_memt, base_memh, CB_SOCKET_EVENT, reg); /* * check for card insertion or removal during suspend period. * XXX: the code can't cope with card swap (remove then * insert). how can we detect such situation? */ (void)pccbbintr(sc); sc->sc_pil_intr_enable = true; return true; }