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author | Josh Blum <josh@joshknows.com> | 2011-01-19 22:23:46 -0800 |
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committer | Josh Blum <josh@joshknows.com> | 2011-01-19 22:23:46 -0800 |
commit | 9239878b0b81c3a368bf11cfc2fe48bfb05ff902 (patch) | |
tree | f41a5e58eac89b35cb99537a0a0b64662384a9f2 /firmware/microblaze/lib/mdelay.c | |
parent | fc138381ee4bd8d191795230b7447071a85e1f28 (diff) | |
parent | 7d918c5f6acc9a5d2c8ae03e2e67b403f7efd5ff (diff) | |
download | uhd-9239878b0b81c3a368bf11cfc2fe48bfb05ff902.tar.gz uhd-9239878b0b81c3a368bf11cfc2fe48bfb05ff902.tar.bz2 uhd-9239878b0b81c3a368bf11cfc2fe48bfb05ff902.zip |
Merge branch 'next'
Conflicts:
host/lib/usrp/usrp2/codec_impl.cpp
Diffstat (limited to 'firmware/microblaze/lib/mdelay.c')
-rw-r--r-- | firmware/microblaze/lib/mdelay.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/firmware/microblaze/lib/mdelay.c b/firmware/microblaze/lib/mdelay.c deleted file mode 100644 index c8c119b1a..000000000 --- a/firmware/microblaze/lib/mdelay.c +++ /dev/null @@ -1,73 +0,0 @@ -/* -*- c -*- */ -/* - * Copyright 2007 Free Software Foundation, Inc. - * - * This program 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 of the License, or - * (at your option) any later version. - * - * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "mdelay.h" -#include "memory_map.h" - -// Delay about one millisecond. -// -// Need 33,333 cycles at 33 MHz. -// Each time around the loop is 10 cycles -// - -#define LOOPCNT(wb_div) (MASTER_CLK_RATE/(wb_div) / 10000) - -inline static void -delay_1ms(int loop_count) -{ - int i; - for (i = 0; i < loop_count; i++){ - asm volatile ("or r0, r0, r0\n\ - or r0, r0, r0\n\ - or r0, r0, r0\n\ - or r0, r0, r0\n\ - or r0, r0, r0\n\ - or r0, r0, r0\n\ - or r0, r0, r0\n"); - } -} - -// delay about ms milliseconds -void -mdelay(int ms) -{ - static int loop_count = -1; - - if (hwconfig_simulation_p()) - return; - - if (loop_count < 0){ - // set correct loop_count - static unsigned short lc[8] = { - 0, - LOOPCNT(1), - LOOPCNT(2), - LOOPCNT(3), - LOOPCNT(4), - LOOPCNT(5), - LOOPCNT(6), - LOOPCNT(7) - }; - - loop_count = lc[hwconfig_wishbone_divisor() & 0x7]; - } - - int i; - for (i = 0; i < ms; i++) - delay_1ms(loop_count); -} |