diff options
| author | Alexander Yurchenko <grange@cvs.openbsd.org> | 2007-05-28 16:35:42 +0000 |
|---|---|---|
| committer | Alexander Yurchenko <grange@cvs.openbsd.org> | 2007-05-28 16:35:42 +0000 |
| commit | 024903f229c875b3dcae393928cc28761a3c18dd (patch) | |
| tree | 1dadc86a0e39d2a2970379bd30633ada073ea3e2 /sys | |
| parent | f0f2e784d1d7d140c42174c0cffa040f4f435a2f (diff) | |
Start adding copperhead chipset support. Not tested at all.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/ips.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/sys/dev/pci/ips.c b/sys/dev/pci/ips.c index 9189744fcfd..58892982478 100644 --- a/sys/dev/pci/ips.c +++ b/sys/dev/pci/ips.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ips.c,v 1.24 2007/05/28 14:05:16 grange Exp $ */ +/* $OpenBSD: ips.c,v 1.25 2007/05/28 16:35:41 grange Exp $ */ /* * Copyright (c) 2006, 2007 Alexander Yurchenko <grange@openbsd.org> @@ -92,6 +92,9 @@ int ips_debug = IPS_D_ERR; #define IPS_CMD_SG 0x80 /* Register definitions */ +#define IPS_REG_HIS 0x08 /* host interrupt status */ +#define IPS_REG_HIS_SCE 0x01 /* status channel enqueue */ +#define IPS_REG_HIS_EN 0x80 /* enable interrupts */ #define IPS_REG_CCSA 0x10 /* command channel system address */ #define IPS_REG_CCC 0x14 /* command channel control */ #define IPS_REG_CCC_SEM 0x0008 /* semaphore */ @@ -834,7 +837,22 @@ ips_flush(struct ips_softc *sc) void ips_copperhead_exec(struct ips_softc *sc, struct ips_ccb *ccb) { - /* XXX: not implemented */ + u_int32_t reg; + int timeout; + + for (timeout = 10; timeout-- > 0; delay(100)) { + reg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, IPS_REG_CCC); + if ((reg & IPS_REG_CCC_SEM) == 0) + break; + } + if (timeout < 0) { + printf("%s: semaphore timeout\n", sc->sc_dev.dv_xname); + return; + } + + bus_space_write_4(sc->sc_iot, sc->sc_ioh, IPS_REG_CCSA, ccb->c_cmdpa); + bus_space_write_2(sc->sc_iot, sc->sc_ioh, IPS_REG_CCC, + IPS_REG_CCC_START); } void @@ -846,13 +864,19 @@ ips_copperhead_init(struct ips_softc *sc) void ips_copperhead_intren(struct ips_softc *sc) { - /* XXX: not implemented */ + bus_space_write_1(sc->sc_iot, sc->sc_ioh, IPS_REG_HIS, IPS_REG_HIS_EN); } int ips_copperhead_isintr(struct ips_softc *sc) { - /* XXX: not implemented */ + u_int8_t reg; + + reg = bus_space_read_1(sc->sc_iot, sc->sc_ioh, IPS_REG_HIS); + bus_space_write_1(sc->sc_iot, sc->sc_ioh, IPS_REG_HIS, reg); + if (reg != 0xff && (reg & IPS_REG_HIS_SCE)) + return (1); + return (0); } |