From: Constantine A. Murenin Date: Sun, 21 Feb 2010 09:36:20 +0000 (-0500) Subject: wbsio(4): raw wbsio.c#rev1.1 and wbsio.4#rev1.1 from NetBSD X-Git-Tag: v2.7.0~101 X-Git-Url: https://gitweb.dragonflybsd.org/dragonfly.git/commitdiff_plain/a5261280f9c2f90fa9690f1906c6c0a823ef29ec wbsio(4): raw wbsio.c#rev1.1 and wbsio.4#rev1.1 from NetBSD --- diff --git a/share/man/man4/wbsio.4 b/share/man/man4/wbsio.4 new file mode 100644 index 0000000000..d5207ae182 --- /dev/null +++ b/share/man/man4/wbsio.4 @@ -0,0 +1,58 @@ +.\" $NetBSD: wbsio.4,v 1.1 2010/02/21 05:16:29 cnst Exp $ +.\" $OpenBSD: wbsio.4,v 1.2 2008/02/17 16:48:47 jmc Exp $ +.\" +.\" Copyright (c) 2008 Mark Kettenis +.\" +.\" 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. +.\" +.Dd February 16, 2010 +.Dt WBSIO 4 +.Os +.Sh NAME +.Nm wbsio +.Nd Winbond LPC Super I/O +.Sh SYNOPSIS +.Cd "wbsio* at isa? port 0x2e" +.Cd "wbsio* at isa? port 0x4e" +.Cd "lm* at wbsio?" +.Sh DESCRIPTION +The +.Nm +driver provides support for the Winbond LPC Super I/O ICs. +Only the hardware monitoring function is currently supported. +.Pp +Support for the hardware monitor function is provided through the +.Xr lm 4 +driver. +.Sh SEE ALSO +.Xr intro 4 , +.Xr isa 4 , +.Xr lm 4 +.Sh HISTORY +The +.Nm +driver first appeared in +.Ox 4.3 . +.Nx +support was added in +.Nx 6.0 . +.Sh AUTHORS +.An -nosplit +The +.Nm +driver was written by +.An Mark Kettenis Aq kettenis@openbsd.org . +It was adapted to +.Nx +by +.An Constantine A. Murenin Aq cnst@NetBSD.org . diff --git a/sys/dev/powermng/wbsio/wbsio.c b/sys/dev/powermng/wbsio/wbsio.c new file mode 100644 index 0000000000..9dd159f755 --- /dev/null +++ b/sys/dev/powermng/wbsio/wbsio.c @@ -0,0 +1,236 @@ +/* $NetBSD: wbsio.c,v 1.1 2010/02/21 05:16:29 cnst Exp $ */ +/* $OpenBSD: wbsio.c,v 1.5 2009/03/29 21:53:52 sthen Exp $ */ +/* + * Copyright (c) 2008 Mark Kettenis + * + * 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. + */ + +/* + * Winbond LPC Super I/O driver. + */ + +#include +#include +#include +#include + +#include + +#include +#include + +/* ISA bus registers */ +#define WBSIO_INDEX 0x00 /* Configuration Index Register */ +#define WBSIO_DATA 0x01 /* Configuration Data Register */ + +#define WBSIO_IOSIZE 0x02 /* ISA I/O space size */ + +#define WBSIO_CONF_EN_MAGIC 0x87 /* enable configuration mode */ +#define WBSIO_CONF_DS_MAGIC 0xaa /* disable configuration mode */ + +/* Configuration Space Registers */ +#define WBSIO_LDN 0x07 /* Logical Device Number */ +#define WBSIO_ID 0x20 /* Device ID */ +#define WBSIO_REV 0x21 /* Device Revision */ + +#define WBSIO_ID_W83627HF 0x52 +#define WBSIO_ID_W83627THF 0x82 +#define WBSIO_ID_W83627EHF 0x88 +#define WBSIO_ID_W83627DHG 0xa0 +#define WBSIO_ID_W83627SF 0x59 +#define WBSIO_ID_W83637HF 0x70 +#define WBSIO_ID_W83697HF 0x60 + +/* Logical Device Number (LDN) Assignments */ +#define WBSIO_LDN_HM 0x0b + +/* Hardware Monitor Control Registers (LDN B) */ +#define WBSIO_HM_ADDR_MSB 0x60 /* Address [15:8] */ +#define WBSIO_HM_ADDR_LSB 0x61 /* Address [7:0] */ + +struct wbsio_softc { + struct device sc_dev; + + bus_space_tag_t sc_iot; + bus_space_handle_t sc_ioh; +}; + +int wbsio_probe(device_t, cfdata_t, void *); +void wbsio_attach(device_t, device_t, void *); +int wbsio_print(void *, const char *); + +CFATTACH_DECL_NEW(wbsio, sizeof(struct wbsio_softc), + wbsio_probe, wbsio_attach, NULL, NULL); + +static __inline void +wbsio_conf_enable(bus_space_tag_t iot, bus_space_handle_t ioh) +{ + bus_space_write_1(iot, ioh, WBSIO_INDEX, WBSIO_CONF_EN_MAGIC); + bus_space_write_1(iot, ioh, WBSIO_INDEX, WBSIO_CONF_EN_MAGIC); +} + +static __inline void +wbsio_conf_disable(bus_space_tag_t iot, bus_space_handle_t ioh) +{ + bus_space_write_1(iot, ioh, WBSIO_INDEX, WBSIO_CONF_DS_MAGIC); +} + +static __inline u_int8_t +wbsio_conf_read(bus_space_tag_t iot, bus_space_handle_t ioh, u_int8_t index) +{ + bus_space_write_1(iot, ioh, WBSIO_INDEX, index); + return (bus_space_read_1(iot, ioh, WBSIO_DATA)); +} + +static __inline void +wbsio_conf_write(bus_space_tag_t iot, bus_space_handle_t ioh, u_int8_t index, + u_int8_t data) +{ + bus_space_write_1(iot, ioh, WBSIO_INDEX, index); + bus_space_write_1(iot, ioh, WBSIO_DATA, data); +} + +int +wbsio_probe(device_t parent, cfdata_t match, void *aux) +{ + struct isa_attach_args *ia = aux; + bus_space_tag_t iot; + bus_space_handle_t ioh; + u_int8_t reg; + + /* Must supply an address */ + if (ia->ia_nio < 1) + return 0; + + if (ISA_DIRECT_CONFIG(ia)) + return 0; + + if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) + return 0; + + /* Match by device ID */ + iot = ia->ia_iot; + if (bus_space_map(iot, ia->ia_io[0].ir_addr, WBSIO_IOSIZE, 0, &ioh)) + return 0; + wbsio_conf_enable(iot, ioh); + reg = wbsio_conf_read(iot, ioh, WBSIO_ID); + aprint_debug("wbsio_probe: id 0x%02x\n", reg); + wbsio_conf_disable(iot, ioh); + bus_space_unmap(iot, ioh, WBSIO_IOSIZE); + switch (reg) { + case WBSIO_ID_W83627HF: + case WBSIO_ID_W83627THF: + case WBSIO_ID_W83627EHF: + case WBSIO_ID_W83627DHG: + case WBSIO_ID_W83637HF: + case WBSIO_ID_W83697HF: + ia->ia_nio = 1; + ia->ia_io[0].ir_size = WBSIO_IOSIZE; + ia->ia_niomem = 0; + ia->ia_nirq = 0; + ia->ia_ndrq = 0; + return 1; + } + + return 0; +} + +void +wbsio_attach(device_t parent, device_t self, void *aux) +{ + struct wbsio_softc *sc = (void *)self; + struct isa_attach_args *ia = aux; + struct isa_attach_args nia; + const char *desc = NULL; + u_int8_t reg, reg0, reg1; + u_int16_t iobase; + + /* Map ISA I/O space */ + sc->sc_iot = ia->ia_iot; + if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, + WBSIO_IOSIZE, 0, &sc->sc_ioh)) { + aprint_error(": can't map i/o space\n"); + return; + } + + /* Enter configuration mode */ + wbsio_conf_enable(sc->sc_iot, sc->sc_ioh); + + /* Read device ID */ + reg = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_ID); + switch (reg) { + case WBSIO_ID_W83627HF: + desc = "W83627HF"; + break; + case WBSIO_ID_W83627THF: + desc = "W83627THF"; + break; + case WBSIO_ID_W83627EHF: + desc = "W83627EHF"; + break; + case WBSIO_ID_W83627DHG: + desc = "W83627DHG"; + break; + case WBSIO_ID_W83637HF: + desc = "W83637HF"; + break; + case WBSIO_ID_W83697HF: + desc = "W83697HF"; + break; + } + + /* Read device revision */ + reg = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_REV); + + aprint_naive("\n"); + aprint_normal(": Winbond LPC Super I/O %s rev 0x%02x\n", desc, reg); + + /* Select HM logical device */ + wbsio_conf_write(sc->sc_iot, sc->sc_ioh, WBSIO_LDN, WBSIO_LDN_HM); + + /* + * The address should be 8-byte aligned, but it seems some + * BIOSes ignore this. They get away with it, because + * Apparently the hardware simply ignores the lower three + * bits. We do the same here. + */ + reg0 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_HM_ADDR_LSB); + reg1 = wbsio_conf_read(sc->sc_iot, sc->sc_ioh, WBSIO_HM_ADDR_MSB); + iobase = (reg1 << 8) | (reg0 & ~0x7); + + /* Escape from configuration mode */ + wbsio_conf_disable(sc->sc_iot, sc->sc_ioh); + + if (iobase == 0) + return; + + nia = *ia; + nia.ia_io[0].ir_addr = iobase; + config_found(self, &nia, wbsio_print); +} + +int +wbsio_print(void *aux, const char *pnp) +{ + struct isa_attach_args *ia = aux; + + if (pnp) + aprint_normal("%s", pnp); + if (ia->ia_io[0].ir_size) + aprint_normal(" port 0x%x", ia->ia_io[0].ir_addr); + if (ia->ia_io[0].ir_size > 1) + aprint_normal("-0x%x", ia->ia_io[0].ir_addr + + ia->ia_io[0].ir_size - 1); + return (UNCONF); +}