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| author |   millert <millert@openbsd.org> | 2001-06-10 05:35:59 +0000 |
|---|---|---|
| committer | millert <millert@openbsd.org> | 2001-06-10 05:35:59 +0000 |
| commit | 5343b07abe4d97de680088844772f355a2b48d87 (patch) | |
| tree | b64f880d7b374e0d03d586432df6b0b29757d220 | |
| parent | sync (diff) | |
| download | wireguard-openbsd-5343b07abe4d97de680088844772f355a2b48d87.tar.xz wireguard-openbsd-5343b07abe4d97de680088844772f355a2b48d87.zip | |
In wi_cmd() wait for the busy bit to clear; from NetBSD (ichiro)
| -rw-r--r-- | sys/dev/ic/if_wi.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sys/dev/ic/if_wi.c b/sys/dev/ic/if_wi.c index 58eeeb76235..3b7c081d06a 100644 --- a/sys/dev/ic/if_wi.c +++ b/sys/dev/ic/if_wi.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_wi.c,v 1.7 2001/06/09 20:17:22 millert Exp $ */ +/* $OpenBSD: if_wi.c,v 1.8 2001/06/10 05:35:59 millert Exp $ */ /* * Copyright (c) 1997, 1998, 1999 @@ -120,7 +120,7 @@ u_int32_t widebug = WIDEBUG; #if !defined(lint) && !defined(__OpenBSD__) static const char rcsid[] = - "$OpenBSD: if_wi.c,v 1.7 2001/06/09 20:17:22 millert Exp $"; + "$OpenBSD: if_wi.c,v 1.8 2001/06/10 05:35:59 millert Exp $"; #endif /* lint */ #ifdef foo @@ -528,7 +528,16 @@ wi_cmd(sc, cmd, val) { int i, s = 0; + /* Wait for the busy bit to clear. */ + for (i = 0; i < WI_TIMEOUT; i++) { + if (!(CSR_READ_2(sc, WI_COMMAND) & WI_CMD_BUSY)) + break; + DELAY(1); + } + CSR_WRITE_2(sc, WI_PARAM0, val); + CSR_WRITE_2(sc, WI_PARAM1, 0); + CSR_WRITE_2(sc, WI_PARAM2, 0); CSR_WRITE_2(sc, WI_COMMAND, cmd); for (i = WI_TIMEOUT; i--; DELAY(1)) { |