diff options
Diffstat (limited to 'sys/dev/lm/lm78_isa.c')
| -rw-r--r-- | sys/dev/lm/lm78_isa.c | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/sys/dev/lm/lm78_isa.c b/sys/dev/lm/lm78_isa.c deleted file mode 100644 index 7449d00bcf35..000000000000 --- a/sys/dev/lm/lm78_isa.c +++ /dev/null @@ -1,251 +0,0 @@ -/* $FreeBSD$ */ -/* $OpenBSD: lm78_isa.c,v 1.2 2007/07/01 21:48:57 cnst Exp $ */ - -/*- - * Copyright (c) 2005, 2006 Mark Kettenis - * Copyright (c) 2007 Constantine A. Murenin, Google Summer of Code - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/kernel.h> -#include <sys/bus.h> -#include <sys/module.h> - -#include <sys/module.h> -#include <sys/bus.h> -#include <machine/bus.h> -#include <machine/resource.h> -#include <sys/rman.h> - -#include <isa/isavar.h> - -#include <sys/systm.h> - -#include <sys/sensors.h> - -#include <dev/lm/lm78var.h> - -/* ISA registers */ -#define LMC_ADDR 0x05 -#define LMC_DATA 0x06 - -extern struct cfdriver lm_cd; - -#if defined(LMDEBUG) -#define DPRINTF(x) do { printf x; } while (0) -#else -#define DPRINTF(x) -#endif - -struct lm_isa_softc { - struct lm_softc sc_lmsc; - - struct resource *sc_iores; - int sc_iorid; - bus_space_tag_t sc_iot; - bus_space_handle_t sc_ioh; -}; - -static int lm_isa_probe(struct device *); -static int lm_isa_attach(struct device *); -static int lm_isa_detach(struct device *); -u_int8_t lm_isa_readreg(struct lm_softc *, int); -void lm_isa_writereg(struct lm_softc *, int, int); - -static device_method_t lm_isa_methods[] = { - /* Methods from the device interface */ - DEVMETHOD(device_probe, lm_isa_probe), - DEVMETHOD(device_attach, lm_isa_attach), - DEVMETHOD(device_detach, lm_isa_detach), - - /* Terminate method list */ - { 0, 0 } -}; - -static driver_t lm_isa_driver = { - "lm", - lm_isa_methods, - sizeof (struct lm_isa_softc) -}; - -static devclass_t lm_devclass; - -DRIVER_MODULE(lm, isa, lm_isa_driver, lm_devclass, NULL, NULL); - -int -lm_isa_probe(struct device *dev) -{ - struct lm_isa_softc *sc = device_get_softc(dev); - struct resource *iores; - int iorid = 0; - bus_space_tag_t iot; - bus_space_handle_t ioh; - int banksel, vendid, chipid, addr; - - iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &iorid, - 0ul, ~0ul, 8, RF_ACTIVE); - if (iores == NULL) { - DPRINTF(("%s: can't map i/o space\n", __func__)); - return (1); - } - iot = rman_get_bustag(iores); - ioh = rman_get_bushandle(iores); - - /* Probe for Winbond chips. */ - bus_space_write_1(iot, ioh, LMC_ADDR, WB_BANKSEL); - banksel = bus_space_read_1(iot, ioh, LMC_DATA); - bus_space_write_1(iot, ioh, LMC_ADDR, WB_VENDID); - vendid = bus_space_read_1(iot, ioh, LMC_DATA); - if (((banksel & 0x80) && vendid == (WB_VENDID_WINBOND >> 8)) || - (!(banksel & 0x80) && vendid == (WB_VENDID_WINBOND & 0xff))) - goto found; - - /* Probe for ITE chips (and don't attach if we find one). */ - bus_space_write_1(iot, ioh, LMC_ADDR, 0x58 /*ITD_CHIPID*/); - vendid = bus_space_read_1(iot, ioh, LMC_DATA); - if (vendid == 0x90 /*IT_ID_IT87*/) - goto notfound; - - /* - * Probe for National Semiconductor LM78/79/81. - * - * XXX This assumes the address has not been changed from the - * power up default. This is probably a reasonable - * assumption, and if it isn't true, we should be able to - * access the chip using the serial bus. - */ - bus_space_write_1(iot, ioh, LMC_ADDR, LM_SBUSADDR); - addr = bus_space_read_1(iot, ioh, LMC_DATA); - if ((addr & 0xfc) == 0x2c) { - bus_space_write_1(iot, ioh, LMC_ADDR, LM_CHIPID); - chipid = bus_space_read_1(iot, ioh, LMC_DATA); - - switch (chipid & LM_CHIPID_MASK) { - case LM_CHIPID_LM78: - case LM_CHIPID_LM78J: - case LM_CHIPID_LM79: - case LM_CHIPID_LM81: - goto found; - } - } - - notfound: - bus_release_resource(dev, SYS_RES_IOPORT, iorid, iores); - - return (1); - - found: - /* Bus-independent probe */ - sc->sc_lmsc.sc_dev = dev; - sc->sc_iot = iot; - sc->sc_ioh = ioh; - sc->sc_lmsc.lm_writereg = lm_isa_writereg; - sc->sc_lmsc.lm_readreg = lm_isa_readreg; - lm_probe(&sc->sc_lmsc); - - bus_release_resource(dev, SYS_RES_IOPORT, iorid, iores); - sc->sc_iot = 0; - sc->sc_ioh = 0; - - return (0); -} - -int -lm_isa_attach(struct device *dev) -{ - struct lm_isa_softc *sc = device_get_softc(dev); -#ifdef notyet - struct lm_softc *lmsc; - int i; - u_int8_t sbusaddr; -#endif - - sc->sc_iores = bus_alloc_resource(dev, SYS_RES_IOPORT, &sc->sc_iorid, - 0ul, ~0ul, 8, RF_ACTIVE); - if (sc->sc_iores == NULL) { - device_printf(dev, "can't map i/o space\n"); - return (1); - } - sc->sc_iot = rman_get_bustag(sc->sc_iores); - sc->sc_ioh = rman_get_bushandle(sc->sc_iores); - - /* Bus-independent attachment */ - lm_attach(&sc->sc_lmsc); - -#ifdef notyet - /* - * Most devices supported by this driver can attach to iic(4) - * as well. However, we prefer to attach them to isa(4) since - * that causes less overhead and is more reliable. We look - * through all previously attached devices, and if we find an - * identical chip at the same serial bus address, we stop - * updating its sensors and mark them as invalid. - */ - - sbusaddr = lm_isa_readreg(&sc->sc_lmsc, LM_SBUSADDR); - if (sbusaddr == 0) - return (0); - - for (i = 0; i < lm_cd.cd_ndevs; i++) { - lmsc = lm_cd.cd_devs[i]; - if (lmsc == &sc->sc_lmsc) - continue; - if (lmsc && lmsc->sbusaddr == sbusaddr && - lmsc->chipid == sc->sc_lmsc.chipid) - config_detach(&lmsc->sc_dev, 0); - } -#endif - return (0); -} - -int -lm_isa_detach(struct device *dev) -{ - struct lm_isa_softc *sc = device_get_softc(dev); - int error; - - /* Bus-independent detachment */ - error = lm_detach(&sc->sc_lmsc); - if (error) - return (error); - - error = bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_iorid, - sc->sc_iores); - if (error) - return (error); - - return (0); -} - -u_int8_t -lm_isa_readreg(struct lm_softc *lmsc, int reg) -{ - struct lm_isa_softc *sc = (struct lm_isa_softc *)lmsc; - - bus_space_write_1(sc->sc_iot, sc->sc_ioh, LMC_ADDR, reg); - return (bus_space_read_1(sc->sc_iot, sc->sc_ioh, LMC_DATA)); -} - -void -lm_isa_writereg(struct lm_softc *lmsc, int reg, int val) -{ - struct lm_isa_softc *sc = (struct lm_isa_softc *)lmsc; - - bus_space_write_1(sc->sc_iot, sc->sc_ioh, LMC_ADDR, reg); - bus_space_write_1(sc->sc_iot, sc->sc_ioh, LMC_DATA, val); -} |