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-rw-r--r--keyboard/infinity/mbed-infinity/cmsis_nvic.c55
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diff --git a/keyboard/infinity/mbed-infinity/cmsis_nvic.c b/keyboard/infinity/mbed-infinity/cmsis_nvic.c
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-/* mbed Microcontroller Library
- * CMSIS-style functionality to support dynamic vectors
- *******************************************************************************
- * Copyright (c) 2011 ARM Limited. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- * 3. Neither the name of ARM Limited nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *******************************************************************************
- */
-#include "cmsis_nvic.h"
-
-#define NVIC_RAM_VECTOR_ADDRESS (0x1FFFE000) // Vectors positioned at start of RAM
-#define NVIC_FLASH_VECTOR_ADDRESS (0x1000) // Initial vector position in flash
-
-void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
- uint32_t *vectors = (uint32_t*)SCB->VTOR;
- uint32_t i;
-
- // Copy and switch to dynamic vectors if the first time called
- if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
- uint32_t *old_vectors = vectors;
- vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
- for (i=0; i<NVIC_NUM_VECTORS; i++) {
- vectors[i] = old_vectors[i];
- }
- SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
- }
- vectors[IRQn + 16] = vector;
-}
-
-uint32_t NVIC_GetVector(IRQn_Type IRQn) {
- uint32_t *vectors = (uint32_t*)SCB->VTOR;
- return vectors[IRQn + 16];
-}