diff options
| author |   dlg <dlg@openbsd.org> | 2006-08-18 01:20:14 +0000 |
|---|---|---|
| committer | dlg <dlg@openbsd.org> | 2006-08-18 01:20:14 +0000 |
| commit | 548a42fb26854b4a4320dbfd3db39512acdbb065 (patch) | |
| tree | 880c849622e37848d0860f9581a206225cd7ee2e | |
| parent | Oops. If you don't use a label, remove it. (diff) | |
| download | wireguard-openbsd-548a42fb26854b4a4320dbfd3db39512acdbb065.tar.xz wireguard-openbsd-548a42fb26854b4a4320dbfd3db39512acdbb065.zip | |
a bit more infrastructure for firmware commands.
| -rw-r--r-- | sys/dev/pci/arc.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/sys/dev/pci/arc.c b/sys/dev/pci/arc.c index 42bfb8bf440..0ddf2a263c3 100644 --- a/sys/dev/pci/arc.c +++ b/sys/dev/pci/arc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: arc.c,v 1.22 2006/08/17 12:31:16 dlg Exp $ */ +/* $OpenBSD: arc.c,v 1.23 2006/08/18 01:20:14 dlg Exp $ */ /* * Copyright (c) 2006 David Gwynne <dlg@openbsd.org> @@ -185,6 +185,31 @@ struct arc_io_cmd { struct arc_sge sgl[ARC_SGL_MAXLEN]; } __packed; +/* definitions of the firmware commands sent via the doorbells */ + +struct arc_fw_hdr { + u_int8_t byte1; + u_int8_t byte2; + u_int8_t byte3; +} __packed; + +/* the fw header must always equal this */ +struct arc_fw_hdr arc_fw_hdr = { 0x5e, 0x01, 0x61 }; + +#define ARC_FW_MUTE_ALARM 0x30 /* defmsg */ +#define ARC_FW_SET_ALARM 0x31 /* 0 is dis, 1 is en */ +#define ARC_FW_NOP 0x38 /* defmsg */ + +/* variable length msg */ +#define ARC_FW_MSG(_len) \ +struct { \ + struct arc_fw_hdr hdr; \ + u_int16_t len; \ + u_int8_t msg[(len)]; \ + u_int8_t cksum; \ +} __packed +#define ARC_FW_MSGBUF(_msg) ((void *)(_msg)->msg) + int arc_match(struct device *, void *, void *); void arc_attach(struct device *, struct device *, void *); int arc_detach(struct device *, int); @@ -302,6 +327,7 @@ int arc_query_firmware(struct arc_softc *); void arc_lock(struct arc_softc *); void arc_unlock(struct arc_softc *); void arc_wait(struct arc_softc *); +u_int8_t arc_msg_cksum(void *, size_t); int arc_msgbuf(struct arc_softc *, void *, size_t, void *, size_t); @@ -738,6 +764,20 @@ arc_query_firmware(struct arc_softc *sc) return (0); } +u_int8_t +arc_msg_cksum(void *cmd, size_t len) +{ + u_int8_t *buf = cmd; + u_int8_t cksum = 0; + int i; + + /* starts after the header, ends before the cksum */ + for (i = sizeof(struct arc_fw_hdr); i < (len - 1); i++) + cksum += buf[i]; + + return (cksum); +} + int arc_msgbuf(struct arc_softc *sc, void *wptr, size_t wlen, void *rptr, size_t rlen) |