aboutsummaryrefslogtreecommitdiffstats
path: root/firmware/fx2/lib/delay.c
diff options
context:
space:
mode:
authorJosh Blum <josh@joshknows.com>2010-11-05 13:53:39 -0700
committerJosh Blum <josh@joshknows.com>2010-11-05 13:53:39 -0700
commit3ac3457184bc3b251ce7398eee56c931983abe65 (patch)
tree7cfa1ba616788ad083236272a323c3a6e2964da3 /firmware/fx2/lib/delay.c
parent144ebf29327981db8422049b451852744619678d (diff)
parentc473cc56fafcb47d6ba1f16e8c9fb89ff6c57bca (diff)
downloaduhd-3ac3457184bc3b251ce7398eee56c931983abe65.tar.gz
uhd-3ac3457184bc3b251ce7398eee56c931983abe65.tar.bz2
uhd-3ac3457184bc3b251ce7398eee56c931983abe65.zip
Merge branch 'good_stuff' into mb_eeprom
Conflicts: firmware/fx2/include
Diffstat (limited to 'firmware/fx2/lib/delay.c')
-rw-r--r--firmware/fx2/lib/delay.c76
1 files changed, 0 insertions, 76 deletions
diff --git a/firmware/fx2/lib/delay.c b/firmware/fx2/lib/delay.c
deleted file mode 100644
index 13cf0eec8..000000000
--- a/firmware/fx2/lib/delay.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/* -*- c++ -*- */
-/*
- * Copyright 2003 Free Software Foundation, Inc.
- *
- * This file is part of GNU Radio
- *
- * GNU Radio is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3, or (at your option)
- * any later version.
- *
- * GNU Radio is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Radio; see the file COPYING. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street,
- * Boston, MA 02110-1301, USA.
- */
-
-/*
- * Delay approximately 1 microsecond (including overhead in udelay).
- */
-static void
-udelay1 (void) _naked
-{
- _asm ; lcall that got us here took 4 bus cycles
- ret ; 4 bus cycles
- _endasm;
-}
-
-/*
- * delay for approximately usecs microseconds
- */
-void
-udelay (unsigned char usecs)
-{
- do {
- udelay1 ();
- } while (--usecs != 0);
-}
-
-
-/*
- * Delay approximately 1 millisecond.
- * We're running at 48 MHz, so we need 48,000 clock cycles.
- *
- * Note however, that each bus cycle takes 4 clock cycles (not obvious,
- * but explains the factor of 4 problem below).
- */
-static void
-mdelay1 (void) _naked
-{
- _asm
- mov dptr,#(-1200 & 0xffff)
-002$:
- inc dptr ; 3 bus cycles
- mov a, dpl ; 2 bus cycles
- orl a, dph ; 2 bus cycles
- jnz 002$ ; 3 bus cycles
-
- ret
- _endasm;
-}
-
-void
-mdelay (unsigned int msecs)
-{
- do {
- mdelay1 ();
- } while (--msecs != 0);
-}
-
-