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-rw-r--r--src/lib/util.h82
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diff --git a/src/lib/util.h b/src/lib/util.h
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-/* *****************************************************************************
- * 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/>.
- *
- * Created: 12/18/09 02:39:27
- * Copyright (c) 2009 Perry L. Hung. All rights reserved.
- *
- * ****************************************************************************/
-
-/**
- * @file util.h
- *
- * @brief Various macros and utility procedures.
- */
-
-/* Generally "useful" utility procedures */
-#ifndef _UTIL_H_
-#define _UTIL_H_
-#include <inttypes.h>
-
-#define MAPLE_DEBUG 1
-
-#define BIT(shift) (1 << (shift))
-#define BIT_MASK_SHIFT(mask, shift) ((mask) << (shift))
-
-/* Return bits m to n of x */
-#define GET_BITS(x, m, n) ((((uint32_t)x) << (31 - (n))) >> ((31 - (n)) + (m)))
-
-/* Bit-banding macros */
-#define BITBAND_SRAM_REF 0x20000000
-#define BITBAND_SRAM_BASE 0x22000000
-#define BITBAND_SRAM(a,b) ((BITBAND_SRAM_BASE + (a-BITBAND_SRAM_REF)*32 + (b*4))) // Convert SRAM address
-#define BITBAND_PERI_REF 0x40000000
-#define BITBAND_PERI_BASE 0x42000000
-#define BITBAND_PERI(a,b) ((BITBAND_PERI_BASE + (a-BITBAND_PERI_REF)*32 + (b*4))) // Convert PERI address
-
-#define COUNTFLAG *((volatile unsigned char*) (BITBAND_PERI(SYSTICK_CSR,2)))
-
-#define REG_SET(reg, val) (*(volatile uint32_t*)(reg) = (val))
-#define REG_SET_BIT(reg, bit) (*(volatile uint32_t*)(reg) |= BIT(bit))
-#define REG_CLEAR_BIT(reg, bit) (*(volatile uint32_t*)(reg) &= ~BIT(bit))
-#define REG_SET_MASK(reg, mask) (*(volatile uint32_t*)(reg) |= (uint32_t)(mask))
-#define REG_CLEAR_MASK(reg, mask) (*(volatile uint32_t*)(reg) &= (uint32_t)~(mask))
-
-#define REG_GET(reg) *(volatile uint32_t*)(reg)
-
-
-#ifdef __cplusplus
-extern "C"{
-#endif
-
-void _fail(const char*, int, const char*);
-
-#ifdef __cplusplus
-} // extern "C"
-#endif
-
-
-/* Assert for sanity checks, undefine MAPLE_DEBUG to compile
- * out these checks */
-#if MAPLE_DEBUG
-#define ASSERT(exp) \
- if (exp) \
- {} \
- else \
- _fail(__FILE__, __LINE__, #exp)
-#else
-#define ASSERT(exp) (void)((0))
-#endif
-
-#endif
-