diff options
| author | David Gwynne <dlg@cvs.openbsd.org> | 2007-04-19 04:08:52 +0000 |
|---|---|---|
| committer | David Gwynne <dlg@cvs.openbsd.org> | 2007-04-19 04:08:52 +0000 |
| commit | fefb984b6c0031e71c2a79040ecb5dc4842e0c17 (patch) | |
| tree | 698d3af99bb5a474e3fee5f3d5bccb0736293baa /sys | |
| parent | b462aaafb9a97d503c63fe43c8676dcec988d482 (diff) | |
the tht firmware isnt technically a firmware, its a series of commands
interleaved with data, which is copied directly into the task fifo of a
tht controller. the commands and data are all 32bit words, and they all
have to be little endian. this byteswaps the host ordered values in
microcode.h into little endian values for the controller to eat.
you can now build the firmware correctly on big endian archs.
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/microcode/tht/build.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/dev/microcode/tht/build.c b/sys/dev/microcode/tht/build.c index eff9dee362f..fdc45b32a8b 100644 --- a/sys/dev/microcode/tht/build.c +++ b/sys/dev/microcode/tht/build.c @@ -1,4 +1,4 @@ -/* $OpenBSD: build.c,v 1.1 2007/04/19 04:04:58 dlg Exp $ */ +/* $OpenBSD: build.c,v 1.2 2007/04/19 04:08:51 dlg Exp $ */ /* * Copyright (c) 2007 David Gwynne <dlg@openbsd.org> @@ -32,11 +32,15 @@ main(int argc, char *argv[]) { ssize_t len; int fd; + int i; fd = open(THT_FW_NAME, O_WRONLY | O_CREAT | O_TRUNC, 0644); if (fd == -1) err(1, "%s", THT_FW_NAME); + for (i = 0; i < (sizeof(tht_fw) / sizeof(tht_fw[0])); i++) + tht_fw[i] = htole32(tht_fw[i]); + len = write(fd, tht_fw, sizeof(tht_fw)); if (len == -1) err(1, "%s write", THT_FW_NAME); |