diff options
| author | Reyk Floeter <reyk@cvs.openbsd.org> | 2007-04-27 14:56:10 +0000 |
|---|---|---|
| committer | Reyk Floeter <reyk@cvs.openbsd.org> | 2007-04-27 14:56:10 +0000 |
| commit | 7aa84f5043d36469b0c1e6639e292f02e06476e2 (patch) | |
| tree | 7d2cda1190c30e51d5fbfd90e6d67b2967abd401 /sys/dev | |
| parent | 8211cc7a5d2dea315539e12659b022b273855a70 (diff) | |
add initial nxb_read/nxb_write functions
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/pci/if_nx.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/sys/dev/pci/if_nx.c b/sys/dev/pci/if_nx.c index 0be5bae956e..b5fe41313ef 100644 --- a/sys/dev/pci/if_nx.c +++ b/sys/dev/pci/if_nx.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_nx.c,v 1.9 2007/04/27 14:54:10 reyk Exp $ */ +/* $OpenBSD: if_nx.c,v 1.10 2007/04/27 14:56:09 reyk Exp $ */ /* * Copyright (c) 2007 Reyk Floeter <reyk@openbsd.org> @@ -125,6 +125,9 @@ int nxb_match(struct device *, void *, void *); void nxb_attach(struct device *, struct device *, void *); int nxb_query(struct nxb_softc *sc); +u_int32_t nxb_read(struct nxb_softc *, bus_size_t); +void nxb_write(struct nxb_softc *, bus_size_t, u_int32_t); + int nx_match(struct device *, void *, void *); void nx_attach(struct device *, struct device *, void *); int nx_print(void *, const char *); @@ -256,6 +259,22 @@ nxb_query(struct nxb_softc *sc) return (0); } +u_int32_t +nxb_read(struct nxb_softc *sc, bus_size_t reg) +{ + bus_space_barrier(sc->sc_memt, sc->sc_memh, reg, 4, + BUS_SPACE_BARRIER_READ); + return (bus_space_read_4(sc->sc_memt, sc->sc_memh, reg)); +} + +void +nxb_write(struct nxb_softc *sc, bus_size_t reg, u_int32_t val) +{ + bus_space_write_4(sc->sc_memt, sc->sc_memh, reg, val); + bus_space_barrier(sc->sc_memt, sc->sc_memh, reg, 4, + BUS_SPACE_BARRIER_WRITE); +} + /* * Routines handling the virtual ''nx'' ports */ |