Index: stable/11/sys/arm/allwinner/aw_sid.c =================================================================== --- stable/11/sys/arm/allwinner/aw_sid.c (revision 305439) +++ stable/11/sys/arm/allwinner/aw_sid.c (revision 305440) @@ -1,135 +1,209 @@ /*- * Copyright (c) 2016 Jared McNeill * 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. * * $FreeBSD$ */ /* * Allwinner secure ID controller */ #include __FBSDID("$FreeBSD$"); +#include #include #include #include #include #include #include +#include #include #include #include #include #define SID_SRAM 0x200 #define SID_THERMAL_CALIB0 (SID_SRAM + 0x34) #define SID_THERMAL_CALIB1 (SID_SRAM + 0x38) +enum sid_type { + A10_SID = 1, + A20_SID, + A83T_SID, +}; + static struct ofw_compat_data compat_data[] = { - { "allwinner,sun8i-a83t-sid", 1 }, + { "allwinner,sun4i-a10-sid", A10_SID}, + { "allwinner,sun7i-a20-sid", A20_SID}, + { "allwinner,sun8i-a83t-sid", A83T_SID}, { NULL, 0 } }; struct aw_sid_softc { struct resource *res; + int type; }; static struct aw_sid_softc *aw_sid_sc; static struct resource_spec aw_sid_spec[] = { { SYS_RES_MEMORY, 0, RF_ACTIVE }, { -1, 0 } }; +enum sid_keys { + AW_SID_ROOT_KEY, +}; + +#define ROOT_KEY_OFF 0x0 +#define ROOT_KEY_SIZE 4 + #define RD4(sc, reg) bus_read_4((sc)->res, (reg)) #define WR4(sc, reg, val) bus_write_4((sc)->res, (reg), (val)) +static int aw_sid_sysctl(SYSCTL_HANDLER_ARGS); + static int aw_sid_probe(device_t dev) { if (!ofw_bus_status_okay(dev)) return (ENXIO); if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0) return (ENXIO); device_set_desc(dev, "Allwinner Secure ID Controller"); return (BUS_PROBE_DEFAULT); } static int aw_sid_attach(device_t dev) { struct aw_sid_softc *sc; sc = device_get_softc(dev); if (bus_alloc_resources(dev, aw_sid_spec, &sc->res) != 0) { device_printf(dev, "cannot allocate resources for device\n"); return (ENXIO); } aw_sid_sc = sc; + sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data; + switch (sc->type) { + case A10_SID: + case A20_SID: + SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), + SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), + OID_AUTO, "rootkey", + CTLTYPE_STRING | CTLFLAG_RD, + dev, AW_SID_ROOT_KEY, aw_sid_sysctl, "A", "Root Key"); + break; + default: + break; + } return (0); } int aw_sid_read_tscalib(uint32_t *calib0, uint32_t *calib1) { struct aw_sid_softc *sc; sc = aw_sid_sc; if (sc == NULL) return (ENXIO); + if (sc->type != A83T_SID) + return (ENXIO); *calib0 = RD4(sc, SID_THERMAL_CALIB0); *calib1 = RD4(sc, SID_THERMAL_CALIB1); return (0); +} + +int +aw_sid_get_rootkey(u_char *out) +{ + struct aw_sid_softc *sc; + int i; + u_int tmp; + + sc = aw_sid_sc; + if (sc == NULL) + return (ENXIO); + if (sc->type != A10_SID && sc->type != A20_SID) + return (ENXIO); + + for (i = 0; i < ROOT_KEY_SIZE ; i++) { + tmp = RD4(aw_sid_sc, ROOT_KEY_OFF + (i * 4)); + be32enc(&out[i * 4], tmp); + } + + return (0); +} + +static int +aw_sid_sysctl(SYSCTL_HANDLER_ARGS) +{ + enum sid_keys key = arg2; + u_char rootkey[16]; + char out[33]; + + if (key != AW_SID_ROOT_KEY) + return (ENOENT); + + if (aw_sid_get_rootkey(rootkey) != 0) + return (ENOENT); + snprintf(out, sizeof(out), + "%16D", rootkey, ""); + + return sysctl_handle_string(oidp, out, sizeof(out), req); } static device_method_t aw_sid_methods[] = { /* Device interface */ DEVMETHOD(device_probe, aw_sid_probe), DEVMETHOD(device_attach, aw_sid_attach), DEVMETHOD_END }; static driver_t aw_sid_driver = { "aw_sid", aw_sid_methods, sizeof(struct aw_sid_softc), }; static devclass_t aw_sid_devclass; EARLY_DRIVER_MODULE(aw_sid, simplebus, aw_sid_driver, aw_sid_devclass, 0, 0, BUS_PASS_RESOURCE + BUS_PASS_ORDER_FIRST); MODULE_VERSION(aw_sid, 1); Index: stable/11/sys/arm/allwinner/aw_sid.h =================================================================== --- stable/11/sys/arm/allwinner/aw_sid.h (revision 305439) +++ stable/11/sys/arm/allwinner/aw_sid.h (revision 305440) @@ -1,34 +1,35 @@ /*- * Copyright (c) 2016 Jared McNeill * 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. * * $FreeBSD$ */ #ifndef __AW_SID_H__ #define __AW_SID_H__ int aw_sid_read_tscalib(uint32_t *, uint32_t *); +int aw_sid_get_rootkey(u_char *out); #endif /* !__AW_SID_H__ */ Index: stable/11 =================================================================== --- stable/11 (revision 305439) +++ stable/11 (revision 305440) Property changes on: stable/11 ___________________________________________________________________ Modified: svn:mergeinfo ## -0,0 +0,1 ## Merged /head:r303087