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Editing: exca.c
/*- * SPDX-License-Identifier: BSD-4-Clause AND BSD-2-Clause-FreeBSD * * Copyright (c) 2002-2005 M. Warner Losh <imp@FreeBSD.org> * * 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. * * This software may be derived from NetBSD i82365.c and other files with * the following copyright: * * Copyright (c) 1997 Marc Horowitz. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Marc Horowitz. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <sys/param.h> #include <sys/systm.h> #include <sys/condvar.h> #include <sys/errno.h> #include <sys/kernel.h> #include <sys/malloc.h> #include <sys/queue.h> #include <sys/module.h> #include <sys/lock.h> #include <sys/mutex.h> #include <sys/conf.h> #include <sys/bus.h> #include <machine/bus.h> #include <sys/rman.h> #include <machine/resource.h> #include <dev/pccard/pccardreg.h> #include <dev/pccard/pccardvar.h> #include <dev/exca/excareg.h> #include <dev/exca/excavar.h> #ifdef EXCA_DEBUG #define DEVPRINTF(dev, fmt, args...) device_printf((dev), (fmt), ## args) #define DPRINTF(fmt, args...) printf(fmt, ## args) #else #define DEVPRINTF(dev, fmt, args...) #define DPRINTF(fmt, args...) #endif static const char *chip_names[] = { "CardBus socket", "Intel i82365SL-A/B or clone", "Intel i82365sl-DF step", "VLSI chip", "Cirrus Logic PD6710", "Cirrus logic PD6722", "Cirrus Logic PD6729", "Vadem 365", "Vadem 465", "Vadem 468", "Vadem 469", "Ricoh RF5C296", "Ricoh RF5C396", "IBM clone", "IBM KING PCMCIA Controller" }; static exca_getb_fn exca_mem_getb; static exca_putb_fn exca_mem_putb; static exca_getb_fn exca_io_getb; static exca_putb_fn exca_io_putb; /* memory */ #define EXCA_MEMINFO(NUM) { \ EXCA_SYSMEM_ADDR ## NUM ## _START_LSB, \ EXCA_SYSMEM_ADDR ## NUM ## _START_MSB, \ EXCA_SYSMEM_ADDR ## NUM ## _STOP_LSB, \ EXCA_SYSMEM_ADDR ## NUM ## _STOP_MSB, \ EXCA_SYSMEM_ADDR ## NUM ## _WIN, \ EXCA_CARDMEM_ADDR ## NUM ## _LSB, \ EXCA_CARDMEM_ADDR ## NUM ## _MSB, \ EXCA_ADDRWIN_ENABLE_MEM ## NUM, \ } static struct mem_map_index_st { int sysmem_start_lsb; int sysmem_start_msb; int sysmem_stop_lsb; int sysmem_stop_msb; int sysmem_win; int cardmem_lsb; int cardmem_msb; int memenable; } mem_map_index[] = { EXCA_MEMINFO(0), EXCA_MEMINFO(1), EXCA_MEMINFO(2), EXCA_MEMINFO(3), EXCA_MEMINFO(4) }; #undef EXCA_MEMINFO static uint8_t exca_mem_getb(struct exca_softc *sc, int reg) { return (bus_space_read_1(sc->bst, sc->bsh, sc->offset + reg)); } static void exca_mem_putb(struct exca_softc *sc, int reg, uint8_t val) { bus_space_write_1(sc->bst, sc->bsh, sc->offset + reg, val); } static uint8_t exca_io_getb(struct exca_softc *sc, int reg) { bus_space_write_1(sc->bst, sc->bsh, EXCA_REG_INDEX, reg + sc->offset); return (bus_space_read_1(sc->bst, sc->bsh, EXCA_REG_DATA)); } static void exca_io_putb(struct exca_softc *sc, int reg, uint8_t val) { bus_space_write_1(sc->bst, sc->bsh, EXCA_REG_INDEX, reg + sc->offset); bus_space_write_1(sc->bst, sc->bsh, EXCA_REG_DATA, val); } /* * Helper function. This will map the requested memory slot. We setup the * map before we call this function. This is used to initially force the * mapping, as well as later restore the mapping after it has been destroyed * in some fashion (due to a power event typically). */ static void exca_do_mem_map(struct exca_softc *sc, int win) { struct mem_map_index_st *map; struct pccard_mem_handle *mem; uint32_t offset; uint32_t mem16; uint32_t attrmem; map = &mem_map_index[win]; mem = &sc->mem[win]; mem16 = (mem->kind & PCCARD_MEM_16BIT) ? EXCA_SYSMEM_ADDRX_START_MSB_DATASIZE_16BIT : 0; attrmem = (mem->kind & PCCARD_MEM_ATTR) ? EXCA_CARDMEM_ADDRX_MSB_REGACTIVE_ATTR : 0; offset = ((mem->cardaddr >> EXCA_CARDMEM_ADDRX_SHIFT) - (mem->addr >> EXCA_SYSMEM_ADDRX_SHIFT)) & 0x3fff; exca_putb(sc, map->sysmem_start_lsb, mem->addr >> EXCA_SYSMEM_ADDRX_SHIFT); exca_putb(sc, map->sysmem_start_msb, ((mem->addr >> (EXCA_SYSMEM_ADDRX_SHIFT + 8)) & EXCA_SYSMEM_ADDRX_START_MSB_ADDR_MASK) | mem16); exca_putb(sc, map->sysmem_stop_lsb, (mem->addr + mem->realsize - 1) >> EXCA_SYSMEM_ADDRX_SHIFT); exca_putb(sc, map->sysmem_stop_msb, (((mem->addr + mem->realsize - 1) >> (EXCA_SYSMEM_ADDRX_SHIFT + 8)) & EXCA_SYSMEM_ADDRX_STOP_MSB_ADDR_MASK) | EXCA_SYSMEM_ADDRX_STOP_MSB_WAIT2); exca_putb(sc, map->sysmem_win, mem->addr >> EXCA_MEMREG_WIN_SHIFT); exca_putb(sc, map->cardmem_lsb, offset & 0xff); exca_putb(sc, map->cardmem_msb, ((offset >> 8) & EXCA_CARDMEM_ADDRX_MSB_ADDR_MASK) | attrmem); DPRINTF("%s %d-bit memory", mem->kind & PCCARD_MEM_ATTR ? "attribute" : "common", mem->kind & PCCARD_MEM_16BIT ? 16 : 8); exca_setb(sc, EXCA_ADDRWIN_ENABLE, map->memenable | EXCA_ADDRWIN_ENABLE_MEMCS16); DELAY(100); #ifdef EXCA_DEBUG { int r1, r2, r3, r4, r5, r6, r7; r1 = exca_getb(sc, map->sysmem_start_msb); r2 = exca_getb(sc, map->sysmem_start_lsb); r3 = exca_getb(sc, map->sysmem_stop_msb); r4 = exca_getb(sc, map->sysmem_stop_lsb); r5 = exca_getb(sc, map->cardmem_msb); r6 = exca_getb(sc, map->cardmem_lsb); r7 = exca_getb(sc, map->sysmem_win); printf("exca_do_mem_map win %d: %#02x%#02x %#02x%#02x " "%#02x%#02x %#02x (%#08x+%#06x.%#06x*%#06x) flags %#x\n", win, r1, r2, r3, r4, r5, r6, r7, mem->addr, mem->size, mem->realsize, mem->cardaddr, mem->kind); } #endif } /* * public interface to map a resource. kind is the type of memory to * map (either common or attribute). Memory created via this interface * starts out at card address 0. Since the only way to set this is * to set it on a struct resource after it has been mapped, we're safe * in maping this assumption. Note that resources can be remapped using * exca_do_mem_map so that's how the card address can be set later. */ int exca_mem_map(struct exca_softc *sc, int kind, struct resource *res) { int win; for (win = 0; win < EXCA_MEM_WINS; win++) { if ((sc->memalloc & (1 << win)) == 0) { sc->memalloc |= (1 << win); break; } } if (win >= EXCA_MEM_WINS) return (ENOSPC); if (sc->flags & EXCA_HAS_MEMREG_WIN) { #ifdef __LP64__ if (rman_get_start(res) >> (EXCA_MEMREG_WIN_SHIFT + 8) != 0) { device_printf(sc->dev, "Does not support mapping above 4GB."); return (EINVAL); } #endif } else { if (rman_get_start(res) >> EXCA_MEMREG_WIN_SHIFT != 0) { device_printf(sc->dev, "Does not support mapping above 16M."); return (EINVAL); } } sc->mem[win].cardaddr = 0; sc->mem[win].memt = rman_get_bustag(res); sc->mem[win].memh = rman_get_bushandle(res); sc->mem[win].addr = rman_get_start(res); sc->mem[win].size = rman_get_end(res) - sc->mem[win].addr + 1; sc->mem[win].realsize = sc->mem[win].size + EXCA_MEM_PAGESIZE - 1; sc->mem[win].realsize = sc->mem[win].realsize - (sc->mem[win].realsize % EXCA_MEM_PAGESIZE); sc->mem[win].kind = kind; DPRINTF("exca_mem_map window %d bus %x+%x card addr %x\n", win, sc->mem[win].addr, sc->mem[win].size, sc->mem[win].cardaddr); exca_do_mem_map(sc, win); return (0); } /* * Private helper function. This turns off a given memory map that is in * use. We do this by just clearing the enable bit in the pcic. If we needed * to make memory unmapping/mapping pairs faster, we would have to store * more state information about the pcic and then use that to intelligently * to the map/unmap. However, since we don't do that sort of thing often * (generally just at configure time), it isn't a case worth optimizing. */ static void exca_mem_unmap(struct exca_softc *sc, int window) { if (window < 0 || window >= EXCA_MEM_WINS) panic("exca_mem_unmap: window out of range"); exca_clrb(sc, EXCA_ADDRWIN_ENABLE, mem_map_index[window].memenable); sc->memalloc &= ~(1 << window); } /* * Find the map that we're using to hold the resource. This works well * so long as the client drivers don't do silly things like map the same * area mutliple times, or map both common and attribute memory at the * same time. This latter restriction is a bug. We likely should just * store a pointer to the res in the mem[x] data structure. */ static int exca_mem_findmap(struct exca_softc *sc, struct resource *res) { int win; for (win = 0; win < EXCA_MEM_WINS; win++) { if (sc->mem[win].memt == rman_get_bustag(res) && sc->mem[win].addr == rman_get_start(res) && sc->mem[win].size == rman_get_size(res)) return (win); } return (-1); } /* * Set the memory flag. This means that we are setting if the memory * is coming from attribute memory or from common memory on the card. * CIS entries are generally in attribute memory (although they can * reside in common memory). Generally, this is the only use for attribute * memory. However, some cards require their drivers to dance in both * common and/or attribute memory and this interface (and setting the * offset interface) exist for such cards. */ int exca_mem_set_flags(struct exca_softc *sc, struct resource *res, uint32_t flags) { int win; win = exca_mem_findmap(sc, res); if (win < 0) { device_printf(sc->dev, "set_res_flags: specified resource not active\n"); return (ENOENT); } switch (flags) { case PCCARD_A_MEM_ATTR: sc->mem[win].kind |= PCCARD_MEM_ATTR; break; case PCCARD_A_MEM_COM: sc->mem[win].kind &= ~PCCARD_MEM_ATTR; break; case PCCARD_A_MEM_16BIT: sc->mem[win].kind |= PCCARD_MEM_16BIT; break; case PCCARD_A_MEM_8BIT: sc->mem[win].kind &= ~PCCARD_MEM_16BIT; break; } exca_do_mem_map(sc, win); return (0); } /* * Given a resource, go ahead and unmap it if we can find it in the * resrouce list that's used. */ int exca_mem_unmap_res(struct exca_softc *sc, struct resource *res) { int win; win = exca_mem_findmap(sc, res); if (win < 0) return (ENOENT); exca_mem_unmap(sc, win); return (0); } /* * Set the offset of the memory. We use this for reading the CIS and * frobbing the pccard's pccard registers (CCR, etc). Some drivers * need to access arbitrary attribute and common memory during their * initialization and operation. */ int exca_mem_set_offset(struct exca_softc *sc, struct resource *res, uint32_t cardaddr, uint32_t *deltap) { int win; uint32_t delta; win = exca_mem_findmap(sc, res); if (win < 0) { device_printf(sc->dev, "set_memory_offset: specified resource not active\n"); return (ENOENT); } sc->mem[win].cardaddr = rounddown2(cardaddr, EXCA_MEM_PAGESIZE); delta = cardaddr % EXCA_MEM_PAGESIZE; if (deltap) *deltap = delta; sc->mem[win].realsize = sc->mem[win].size + delta + EXCA_MEM_PAGESIZE - 1; sc->mem[win].realsize = sc->mem[win].realsize - (sc->mem[win].realsize % EXCA_MEM_PAGESIZE); exca_do_mem_map(sc, win); return (0); } /* I/O */ #define EXCA_IOINFO(NUM) { \ EXCA_IOADDR ## NUM ## _START_LSB, \ EXCA_IOADDR ## NUM ## _START_MSB, \ EXCA_IOADDR ## NUM ## _STOP_LSB, \ EXCA_IOADDR ## NUM ## _STOP_MSB, \ EXCA_ADDRWIN_ENABLE_IO ## NUM, \ EXCA_IOCTL_IO ## NUM ## _WAITSTATE \ | EXCA_IOCTL_IO ## NUM ## _ZEROWAIT \ | EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_MASK \ | EXCA_IOCTL_IO ## NUM ## _DATASIZE_MASK, \ { \ EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_CARD, \ EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_DATASIZE \ | EXCA_IOCTL_IO ## NUM ## _DATASIZE_8BIT, \ EXCA_IOCTL_IO ## NUM ## _IOCS16SRC_DATASIZE \ | EXCA_IOCTL_IO ## NUM ## _DATASIZE_16BIT, \ } \ } static struct io_map_index_st { int start_lsb; int start_msb; int stop_lsb; int stop_msb; int ioenable; int ioctlmask; int ioctlbits[3]; /* indexed by PCCARD_WIDTH_* */ } io_map_index[] = { EXCA_IOINFO(0), EXCA_IOINFO(1), }; #undef EXCA_IOINFO static void exca_do_io_map(struct exca_softc *sc, int win) { struct io_map_index_st *map; struct pccard_io_handle *io; map = &io_map_index[win]; io = &sc->io[win]; exca_putb(sc, map->start_lsb, io->addr & 0xff); exca_putb(sc, map->start_msb, (io->addr >> 8) & 0xff); exca_putb(sc, map->stop_lsb, (io->addr + io->size - 1) & 0xff); exca_putb(sc, map->stop_msb, ((io->addr + io->size - 1) >> 8) & 0xff); exca_clrb(sc, EXCA_IOCTL, map->ioctlmask); exca_setb(sc, EXCA_IOCTL, map->ioctlbits[io->width]); exca_setb(sc, EXCA_ADDRWIN_ENABLE, map->ioenable); #ifdef EXCA_DEBUG { int r1, r2, r3, r4; r1 = exca_getb(sc, map->start_msb); r2 = exca_getb(sc, map->start_lsb); r3 = exca_getb(sc, map->stop_msb); r4 = exca_getb(sc, map->stop_lsb); DPRINTF("exca_do_io_map window %d: %02x%02x %02x%02x " "(%08x+%08x)\n", win, r1, r2, r3, r4, io->addr, io->size); } #endif } int exca_io_map(struct exca_softc *sc, int width, struct resource *r) { int win; #ifdef EXCA_DEBUG static char *width_names[] = { "auto", "io8", "io16"}; #endif for (win=0; win < EXCA_IO_WINS; win++) { if ((sc->ioalloc & (1 << win)) == 0) { sc->ioalloc |= (1 << win); break; } } if (win >= EXCA_IO_WINS) return (ENOSPC); sc->io[win].iot = rman_get_bustag(r); sc->io[win].ioh = rman_get_bushandle(r); sc->io[win].addr = rman_get_start(r); sc->io[win].size = rman_get_end(r) - sc->io[win].addr + 1; sc->io[win].flags = 0; sc->io[win].width = width; DPRINTF("exca_io_map window %d %s port %x+%x\n", win, width_names[width], sc->io[win].addr, sc->io[win].size); exca_do_io_map(sc, win); return (0); } static void exca_io_unmap(struct exca_softc *sc, int window) { if (window >= EXCA_IO_WINS) panic("exca_io_unmap: window out of range"); exca_clrb(sc, EXCA_ADDRWIN_ENABLE, io_map_index[window].ioenable); sc->ioalloc &= ~(1 << window); sc->io[window].iot = 0; sc->io[window].ioh = 0; sc->io[window].addr = 0; sc->io[window].size = 0; sc->io[window].flags = 0; sc->io[window].width = 0; } static int exca_io_findmap(struct exca_softc *sc, struct resource *res) { int win; for (win = 0; win < EXCA_IO_WINS; win++) { if (sc->io[win].iot == rman_get_bustag(res) && sc->io[win].addr == rman_get_start(res) && sc->io[win].size == rman_get_size(res)) return (win); } return (-1); } int exca_io_unmap_res(struct exca_softc *sc, struct resource *res) { int win; win = exca_io_findmap(sc, res); if (win < 0) return (ENOENT); exca_io_unmap(sc, win); return (0); } /* Misc */ /* * If interrupts are enabled, then we should be able to just wait for * an interrupt routine to wake us up. Busy waiting shouldn't be * necessary. Sadly, not all legacy ISA cards support an interrupt * for the busy state transitions, at least according to their datasheets, * so we busy wait a while here.. */ static void exca_wait_ready(struct exca_softc *sc) { int i; DEVPRINTF(sc->dev, "exca_wait_ready: status 0x%02x\n", exca_getb(sc, EXCA_IF_STATUS)); for (i = 0; i < 10000; i++) { if (exca_getb(sc, EXCA_IF_STATUS) & EXCA_IF_STATUS_READY) return; DELAY(500); } device_printf(sc->dev, "ready never happened, status = %02x\n", exca_getb(sc, EXCA_IF_STATUS)); } /* * Reset the card. Ideally, we'd do a lot of this via interrupts. * However, many PC Cards will deassert the ready signal. This means * that they are asserting an interrupt. This makes it hard to * do anything but a busy wait here. One could argue that these * such cards are broken, or that the bridge that allows this sort * of interrupt through isn't quite what you'd want (and may be a standards * violation). However, such arguing would leave a huge class of PC Cards * and bridges out of reach for use in the system. * * Maybe I should reevaluate the above based on the power bug I fixed * in OLDCARD. */ void exca_reset(struct exca_softc *sc, device_t child) { int win; /* enable socket i/o */ exca_setb(sc, EXCA_PWRCTL, EXCA_PWRCTL_OE); exca_putb(sc, EXCA_INTR, EXCA_INTR_ENABLE); /* hold reset for 30ms */ DELAY(30*1000); /* clear the reset flag */ exca_setb(sc, EXCA_INTR, EXCA_INTR_RESET); /* wait 20ms as per PC Card standard (r2.01) section 4.3.6 */ DELAY(20*1000); exca_wait_ready(sc); /* disable all address windows */ exca_putb(sc, EXCA_ADDRWIN_ENABLE, 0); exca_setb(sc, EXCA_INTR, EXCA_INTR_CARDTYPE_IO); DEVPRINTF(sc->dev, "card type is io\n"); /* reinstall all the memory and io mappings */ for (win = 0; win < EXCA_MEM_WINS; ++win) if (sc->memalloc & (1 << win)) exca_do_mem_map(sc, win); for (win = 0; win < EXCA_IO_WINS; ++win) if (sc->ioalloc & (1 << win)) exca_do_io_map(sc, win); } /* * Initialize the exca_softc data structure for the first time. */ void exca_init(struct exca_softc *sc, device_t dev, bus_space_tag_t bst, bus_space_handle_t bsh, uint32_t offset) { sc->dev = dev; sc->memalloc = 0; sc->ioalloc = 0; sc->bst = bst; sc->bsh = bsh; sc->offset = offset; sc->flags = 0; sc->getb = exca_mem_getb; sc->putb = exca_mem_putb; sc->pccarddev = device_add_child(dev, "pccard", -1); if (sc->pccarddev == NULL) DEVPRINTF(brdev, "WARNING: cannot add pccard bus.\n"); else if (device_probe_and_attach(sc->pccarddev) != 0) DEVPRINTF(brdev, "WARNING: cannot attach pccard bus.\n"); } /* * Is this socket valid? */ static int exca_valid_slot(struct exca_softc *exca) { uint8_t c; /* Assume the worst */ exca->chipset = EXCA_BOGUS; /* * see if there's a PCMCIA controller here * Intel PCMCIA controllers use 0x82 and 0x83 * IBM clone chips use 0x88 and 0x89, apparently */ c = exca_getb(exca, EXCA_IDENT); DEVPRINTF(exca->dev, "Ident is %x\n", c); if ((c & EXCA_IDENT_IFTYPE_MASK) != EXCA_IDENT_IFTYPE_MEM_AND_IO) return (0); if ((c & EXCA_IDENT_ZERO) != 0) return (0); switch (c & EXCA_IDENT_REV_MASK) { /* * 82365 or clones. */ case EXCA_IDENT_REV_I82365SLR0: case EXCA_IDENT_REV_I82365SLR1: exca->chipset = EXCA_I82365; /* * Check for Vadem chips by unlocking their extra * registers and looking for valid ID. Bit 3 in * the ID register is normally 0, except when * EXCA_VADEMREV is set. Other bridges appear * to ignore this frobbing. */ bus_space_write_1(exca->bst, exca->bsh, EXCA_REG_INDEX, EXCA_VADEM_COOKIE1); bus_space_write_1(exca->bst, exca->bsh, EXCA_REG_INDEX, EXCA_VADEM_COOKIE2); exca_setb(exca, EXCA_VADEM_VMISC, EXCA_VADEM_REV); c = exca_getb(exca, EXCA_IDENT); if (c & 0x08) { switch (c & 7) { case 1: exca->chipset = EXCA_VG365; break; case 2: exca->chipset = EXCA_VG465; break; case 3: exca->chipset = EXCA_VG468; break; default: exca->chipset = EXCA_VG469; break; } exca_clrb(exca, EXCA_VADEM_VMISC, EXCA_VADEM_REV); break; } /* * Check for RICOH RF5C[23]96 PCMCIA Controller */ c = exca_getb(exca, EXCA_RICOH_ID); if (c == EXCA_RID_396) { exca->chipset = EXCA_RF5C396; break; } else if (c == EXCA_RID_296) { exca->chipset = EXCA_RF5C296; break; } /* * Check for Cirrus logic chips. */ exca_putb(exca, EXCA_CIRRUS_CHIP_INFO, 0); c = exca_getb(exca, EXCA_CIRRUS_CHIP_INFO); if ((c & EXCA_CIRRUS_CHIP_INFO_CHIP_ID) == EXCA_CIRRUS_CHIP_INFO_CHIP_ID) { c = exca_getb(exca, EXCA_CIRRUS_CHIP_INFO); if ((c & EXCA_CIRRUS_CHIP_INFO_CHIP_ID) == 0) { if (c & EXCA_CIRRUS_CHIP_INFO_SLOTS) exca->chipset = EXCA_PD6722; else exca->chipset = EXCA_PD6710; break; } } break; case EXCA_IDENT_REV_I82365SLDF: /* * Intel i82365sl-DF step or maybe a vlsi 82c146 * we detected the vlsi case earlier, so if the controller * isn't set, we know it is a i82365sl step D. * XXXX Except we didn't -- this is a regression but VLSI * controllers are super hard to find these days for testing. */ exca->chipset = EXCA_I82365SL_DF; break; case EXCA_IDENT_REV_IBM1: case EXCA_IDENT_REV_IBM2: exca->chipset = EXCA_IBM; break; case EXCA_IDENT_REV_IBM_KING: exca->chipset = EXCA_IBM_KING; break; default: return (0); } return (1); } /* * Probe the expected slots. We maybe should set the ID for each of these * slots too while we're at it. But maybe that belongs to a separate * function. * * The caller must guarantee that at least EXCA_NSLOTS are present in exca. */ int exca_probe_slots(device_t dev, struct exca_softc *exca, bus_space_tag_t iot, bus_space_handle_t ioh) { int err; int i; err = ENXIO; for (i = 0; i < EXCA_NSLOTS; i++) { exca_init(&exca[i], dev, iot, ioh, i * EXCA_SOCKET_SIZE); exca->getb = exca_io_getb; exca->putb = exca_io_putb; if (exca_valid_slot(&exca[i])) { device_set_desc(dev, chip_names[exca[i].chipset]); err = 0; } } return (err); } void exca_insert(struct exca_softc *exca) { if (device_is_attached(exca->pccarddev)) { if (CARD_ATTACH_CARD(exca->pccarddev) != 0) device_printf(exca->dev, "PC Card card activation failed\n"); } else { device_printf(exca->dev, "PC Card inserted, but no pccard bus.\n"); } } void exca_removal(struct exca_softc *exca) { if (device_is_attached(exca->pccarddev)) CARD_DETACH_CARD(exca->pccarddev); } int exca_activate_resource(struct exca_softc *exca, device_t child, int type, int rid, struct resource *res) { int err; if (rman_get_flags(res) & RF_ACTIVE) return (0); err = BUS_ACTIVATE_RESOURCE(device_get_parent(exca->dev), child, type, rid, res); if (err) return (err); switch (type) { case SYS_RES_IOPORT: err = exca_io_map(exca, PCCARD_WIDTH_AUTO, res); break; case SYS_RES_MEMORY: err = exca_mem_map(exca, 0, res); break; } if (err) BUS_DEACTIVATE_RESOURCE(device_get_parent(exca->dev), child, type, rid, res); return (err); } int exca_deactivate_resource(struct exca_softc *exca, device_t child, int type, int rid, struct resource *res) { if (rman_get_flags(res) & RF_ACTIVE) { /* if activated */ switch (type) { case SYS_RES_IOPORT: if (exca_io_unmap_res(exca, res)) return (ENOENT); break; case SYS_RES_MEMORY: if (exca_mem_unmap_res(exca, res)) return (ENOENT); break; } } return (BUS_DEACTIVATE_RESOURCE(device_get_parent(exca->dev), child, type, rid, res)); } #if 0 static struct resource * exca_alloc_resource(struct exca_softc *sc, device_t child, int type, int *rid, u_long start, u_long end, u_long count, uint flags) { struct resource *res = NULL; int tmp; switch (type) { case SYS_RES_MEMORY: if (start < cbb_start_mem) start = cbb_start_mem; if (end < start) end = start; flags = (flags & ~RF_ALIGNMENT_MASK) | rman_make_alignment_flags(CBB_MEMALIGN); break; case SYS_RES_IOPORT: if (start < cbb_start_16_io) start = cbb_start_16_io; if (end < start) end = start; break; case SYS_RES_IRQ: tmp = rman_get_start(sc->irq_res); if (start > tmp || end < tmp || count != 1) { device_printf(child, "requested interrupt %ld-%ld," "count = %ld not supported by cbb\n", start, end, count); return (NULL); } flags |= RF_SHAREABLE; start = end = rman_get_start(sc->irq_res); break; } res = BUS_ALLOC_RESOURCE(up, child, type, rid, start, end, count, flags & ~RF_ACTIVE); if (res == NULL) return (NULL); cbb_insert_res(sc, res, type, *rid); if (flags & RF_ACTIVE) { if (bus_activate_resource(child, type, *rid, res) != 0) { bus_release_resource(child, type, *rid, res); return (NULL); } } return (res); } static int exca_release_resource(struct exca_softc *sc, device_t child, int type, int rid, struct resource *res) { int error; if (rman_get_flags(res) & RF_ACTIVE) { error = bus_deactivate_resource(child, type, rid, res); if (error != 0) return (error); } cbb_remove_res(sc, res); return (BUS_RELEASE_RESOURCE(device_get_parent(brdev), child, type, rid, res)); } #endif static int exca_modevent(module_t mod, int cmd, void *arg) { return 0; } DEV_MODULE(exca, exca_modevent, NULL); MODULE_VERSION(exca, 1);
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