1 /* limits.h 2 ** 3 ** Copyright 2011, The Android Open Source Project 4 ** 5 ** Redistribution and use in source and binary forms, with or without 6 ** modification, are permitted provided that the following conditions are met: 7 ** * Redistributions of source code must retain the above copyright 8 ** notice, this list of conditions and the following disclaimer. 9 ** * Redistributions in binary form must reproduce the above copyright 10 ** notice, this list of conditions and the following disclaimer in the 11 ** documentation and/or other materials provided with the distribution. 12 ** * Neither the name of The Android Open Source Project nor the names of 13 ** its contributors may be used to endorse or promote products derived 14 ** from this software without specific prior written permission. 15 ** 16 ** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND 17 ** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 ** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 ** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE 20 ** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 ** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 ** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 ** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 26 ** DAMAGE. 27 */ 28 29 #ifndef TINYALSA_LIMITS_H 30 #define TINYALSA_LIMITS_H 31 32 #include <tinyalsa/interval.h> 33 34 #include <limits.h> 35 #include <stdint.h> 36 37 #define TINYALSA_SIGNED_INTERVAL_MAX SSIZE_MAX 38 #define TINYALSA_SIGNED_INTERVAL_MIN SSIZE_MIN 39 40 #define TINYALSA_UNSIGNED_INTERVAL_MAX SIZE_MAX 41 #define TINYALSA_UNSIGNED_INTERVAL_MIN SIZE_MIN 42 43 #define TINYALSA_CHANNELS_MAX 32U 44 #define TINYALSA_CHANNELS_MIN 1U 45 46 #define TINYALSA_FRAMES_MAX (ULONG_MAX / (TINYALSA_CHANNELS_MAX * 4)) 47 #define TINYALSA_FRAMES_MIN 0U 48 49 #if TINYALSA_FRAMES_MAX > TINYALSA_UNSIGNED_INTERVAL_MAX 50 #error "Frames max exceeds measurable value." 51 #endif 52 53 #if TINYALSA_FRAMES_MIN < TINYALSA_UNSIGNED_INTERVAL_MIN 54 #error "Frames min exceeds measurable value." 55 #endif 56 57 extern const struct tinyalsa_unsigned_interval tinyalsa_channels_limit; 58 59 extern const struct tinyalsa_unsigned_interval tinyalsa_frames_limit; 60 61 #endif /* TINYALSA_LIMITS_H */ 62 63