From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/asm-v850/v850e_utils.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 include/asm-v850/v850e_utils.h (limited to 'include/asm-v850/v850e_utils.h') diff --git a/include/asm-v850/v850e_utils.h b/include/asm-v850/v850e_utils.h new file mode 100644 index 00000000000..52eb72822d3 --- /dev/null +++ b/include/asm-v850/v850e_utils.h @@ -0,0 +1,35 @@ +/* + * include/asm-v850/v850e_utils.h -- Utility functions associated with + * V850E CPUs + * + * Copyright (C) 2001,03 NEC Electronics Corporation + * Copyright (C) 2001,03 Miles Bader + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Miles Bader + */ + +#ifndef __V850_V850E_UTILS_H__ +#define __V850_V850E_UTILS_H__ + +/* Calculate counter clock-divider and count values to attain the + desired frequency RATE from the base frequency BASE_FREQ. The + counter is expected to have a clock-divider, which can divide the + system cpu clock by a power of two value from MIN_DIVLOG2 to + MAX_DIV_LOG2, and a word-size of COUNTER_SIZE bits (the counter + counts up and resets whenever it's equal to the compare register, + generating an interrupt or whatever when it does so). The returned + values are: *DIVLOG2 -- log2 of the desired clock divider and *COUNT + -- the counter compare value to use. Returns true if it was possible + to find a reasonable value, otherwise false (and the other return + values will be set to be as good as possible). */ +extern int calc_counter_params (unsigned long base_freq, + unsigned long rate, + unsigned min_divlog2, unsigned max_divlog2, + unsigned counter_size, + unsigned *divlog2, unsigned *count); + +#endif /* __V850_V850E_UTILS_H__ */ -- cgit v1.2.3